diff --git a/Doc/DML Documentation.pdf b/Doc/DML Documentation.pdf
index 68abda0..61eb264 100644
Binary files a/Doc/DML Documentation.pdf and b/Doc/DML Documentation.pdf differ
diff --git a/Doc/DML Quick Reference.pdf b/Doc/DML Quick Reference.pdf
index dfceb0e..6919fa3 100644
Binary files a/Doc/DML Quick Reference.pdf and b/Doc/DML Quick Reference.pdf differ
diff --git a/modules/cargoReceiver.lua b/modules/cargoReceiver.lua
index b54e49f..ff6ec3e 100644
--- a/modules/cargoReceiver.lua
+++ b/modules/cargoReceiver.lua
@@ -1,5 +1,5 @@
 cfxCargoReceiver = {}
-cfxCargoReceiver.version = "2.0.0" 
+cfxCargoReceiver.version = "2.1.0" 
 cfxCargoReceiver.ups = 1 -- once a second 
 cfxCargoReceiver.maxDirectionRange = 500 -- in m. distance when cargo manager starts talking to pilots who are carrying that cargo
 cfxCargoReceiver.requiredLibs = {
@@ -12,7 +12,10 @@ cfxCargoReceiver.requiredLibs = {
   - 2.0.0 no more cfxPlayer Dependency 
           dmlZones, OOP
 		  clean-up
-  
+  - 2.1.0 code maintenance 
+		  cargo gets removed from mgr when touching ground 
+		  switch to cargoReceiver!
+		  noBounce attribute 
   
   CargoReceiver is a zone enhancement you use to be automatically 
   notified if a cargo was delivered inside the zone. 
@@ -25,26 +28,30 @@ cfxCargoReceiver.receiverZones = {}
 function cfxCargoReceiver.processReceiverZone(aZone) -- process attribute and add to zone
 	-- since the attribute is there, simply set the zones
 	-- isCargoReceiver flag and we are good
-	aZone.isCargoReceiver = true 
-	-- we can add additional processing here 
-	aZone.autoRemove = aZone:getBoolFromZoneProperty("autoRemove", false) -- maybe add a removeDelay
+	aZone.isCargoReceiver = true -- so all zones can detect this. Necessary?
+	aZone.autoRemove = aZone:getBoolFromZoneProperty("autoRemove", false)
 	aZone.removeDelay = aZone:getNumberFromZoneProperty("removeDelay", 1)
 	if aZone.removeDelay < 1 then aZone.removeDelay = 1 end 
 	aZone.silent = aZone:getBoolFromZoneProperty("silent", false)
-	
-	
-	-- new method support
 	aZone.cargoMethod = aZone:getStringFromZoneProperty("method", "inc")
 	if aZone:hasProperty("cargoMethod") then 
 		aZone.cargoMethod = aZone:getStringFromZoneProperty("cargoMethod", "inc")
 	end
 	
-	if aZone:hasProperty("f!") then 
+	-- save the names of cargos delivered to prevent 'bounce'
+	aZone.cargosDelivered = {} -- by cargo name 
+	aZone.noBounce = aZone:getBoolFromZoneProperty("noBounce", true)
+	if aZone:hasProperty("cargoReceiver!") then 
+		aZone.outReceiveFlag = aZone:getStringFromZoneProperty("cargoReceiver!", "*<none>")
+	elseif aZone:hasProperty("f!") then 
 		aZone.outReceiveFlag = aZone:getStringFromZoneProperty("f!", "*<none>")
 	elseif aZone:hasProperty("cargoReceived!") then 
 		aZone.outReceiveFlag = aZone:getStringFromZoneProperty( "cargoReceived!", "*<none>")
 	end
 	
+	if not aZone.outReceiveFlag then 
+		trigger.action.outText("+++crgR: receiver <" .. aZone.name .. "> has no output!", 30)
+	end 
 end
 
 function cfxCargoReceiver.addReceiverZone(aZone)
@@ -94,7 +101,7 @@ function cfxCargoReceiver.cargoEvent(event, object, name)
 
 	if not event then return end 
 	if event == "grounded" then 
-		-- this is actually the only one that interests us 
+		-- this is the only one that interests us 
 		if not object then 
 			return 
 		end 
@@ -106,21 +113,28 @@ function cfxCargoReceiver.cargoEvent(event, object, name)
 		-- now invoke callbacks for all zones 
 		-- this is in 
 		for name, aZone in pairs(cfxCargoReceiver.receiverZones) do
-			if cfxZones.pointInZone(loc, aZone) then 
+			if aZone:pointInZone(loc) then 
 				cfxCargoReceiver.invokeCallback("deliver", object, name, aZone)
 				
 				-- set flags as indicated
 				if aZone.outReceiveFlag then 
-					cfxZones.pollFlag(aZone.outReceiveFlag, aZone.cargoMethod, aZone)
+					if aZone.noBounce then 
+						-- we only do this once for every named object 
+						if not aZone.cargosDelivered[name] then 
+							aZone.cargosDelivered[name] = true 
+							aZone:pollFlag(aZone.outReceiveFlag, aZone.cargoMethod)
+						end
+					else 
+						aZone:pollFlag(aZone.outReceiveFlag, aZone.cargoMethod)
+					end 
 				end
 				
 				if aZone.autoRemove then 
-					-- schedule this for in a few seconds?
+					-- schedule this for in a few seconds
 					local args = {}
 					args.theObject = object 
 					args.theZone = aZone 
 					timer.scheduleFunction(cfxCargoReceiver.removeCargo, args, timer.getTime() + aZone.removeDelay)
-					--object:destroy()
 				end
 			end
 		end
@@ -139,17 +153,13 @@ function cfxCargoReceiver.update()
 	-- new we see if any of these are close to a delivery zone 
 	for idx, aCargo in pairs(liftedCargos) do 
 		local thePoint = aCargo:getPoint()
-		local receiver = cfxZones.getClosestZone(
-			thePoint,
-			cfxCargoReceiver.receiverZones -- must be indexed by name
-			)
+		local receiver = cfxZones.getClosestZone(thePoint, cfxCargoReceiver.receiverZones) -- must be indexed by name
 		-- we now check if we are in 'speaking range' and receiver can talk 
-		-- modify delta by distance to boundary, not 
-		-- center
+		-- modify delta by distance to boundary, not center
 		local delta = dcsCommon.distFlat(thePoint, cfxZones.getPoint(receiver))
 		delta = delta - receiver.radius
 		
-		if (receiver.silent == false) and 
+		if (not receiver.silent) and 
 		   (delta < cfxCargoReceiver.maxDirectionRange) then 
 			-- this cargo can be talked down. 
 			-- find the player unit that is closest to in in hopes 
@@ -214,10 +224,14 @@ function cfxCargoReceiver.start()
 	end
 
 	-- scan all zones for cargoReceiver flag 
+	local attrZones = cfxZones.getZonesWithAttributeNamed("cargoReceiver!")
+	for k, aZone in pairs(attrZones) do 
+		cfxCargoReceiver.processReceiverZone(aZone)
+		cfxCargoReceiver.addReceiverZone(aZone)
+	end
+
+	-- old version, LEGACY
 	local attrZones = cfxZones.getZonesWithAttributeNamed("cargoReceiver")
-	
-	-- now create a spawner for all, add them to the spawner updater, and spawn for all zones that are not
-	-- paused 
 	for k, aZone in pairs(attrZones) do 
 		cfxCargoReceiver.processReceiverZone(aZone) -- process attribute and add to zone
 		cfxCargoReceiver.addReceiverZone(aZone) -- remember it so we can smoke it
diff --git a/modules/cfxZones.lua b/modules/cfxZones.lua
index 20643b0..7969745 100644
--- a/modules/cfxZones.lua
+++ b/modules/cfxZones.lua
@@ -1,5 +1,5 @@
 cfxZones = {}
-cfxZones.version = "4.4.2" 
+cfxZones.version = "4.4.3" 
 
 -- cf/x zone management module
 -- reads dcs zones and makes them accessible and mutable 
@@ -32,6 +32,7 @@ cfxZones.version = "4.4.2"
 		  - dmlZone:getCoalition() dereferences masterOwner once 
 -4.4.1	  - better verbosity for error in doPollFlag()
 -4.4.2    - twn support for wildcards <twn: > and <loc:>
+-4.4.3    - property name is trimmed (double check)
 --]]--
 
 --
@@ -123,7 +124,14 @@ function cfxZones.readFromDCS(clearfirst)
 			else
 				newZone.properties = {}
 			end -- WARNING: REF COPY. May need to clone 
-			
+--[[--			
+			trigger.action.outText("zone <> properties:trimmed", 30)
+			local msg = "["
+			for idx, val in pairs(newZone.properties) do 
+				msg = msg .. "<" .. val.key .. ">:<" .. dcsCommon.trim(val.key) .. ">, "
+			end 
+			trigger.action.outText(msg, 30)
+--]]--			
 			local upperName = newZone.name:upper()
 			
 			-- location as 'point'
@@ -2158,7 +2166,14 @@ function cfxZones.extractPropertyFromDCS(theKey, theProperties)
 	for i=1, #theProperties do
 		local theP = theProperties[i]
 		 
-		local existingKey = dcsCommon.trim(theP.key)  
+		local existingKey = dcsCommon.trim(theP.key)  -- does not work if ends on "#!?" - why?
+		--while len(existingKey) > 1 and string.sub(existingKey, -1) == " " do
+		--	existingKey = existingKey:sub(1, -2) -- trim manually 
+		--end		
+		if string.sub(existingKey, -1) == " " then 
+			trigger.action.outText("+++ZONES: warning: unable to trim blanks from attribute name <" .. existingKey .. ">", 30)
+		end 
+--		trigger.action.outText("procced attribute name <" .. existingKey .. ">", 30)
 		if not cfxZones.caseSensitiveProperties then 
 			existingKey = string.lower(existingKey)
 		end
@@ -2388,6 +2403,7 @@ function dmlZone:hasProperty(theProperty)
 		trigger.action.outText("+++zne: WARNING - hasProperty called with nil theProperty for zone <" .. self.name .. ">", 30)
 		return false 
 	end 
+	theProperty = dcsCommon.trim(theProperty) -- strip leading and training blanks 
 	local foundIt = self:getZoneProperty(theProperty)
 	if not foundIt then 
 		-- check for possible forgotten or exchanged IO flags 
diff --git a/modules/civAir.lua b/modules/civAir.lua
index d4b0a63..8f2cf26 100644
--- a/modules/civAir.lua
+++ b/modules/civAir.lua
@@ -1,5 +1,5 @@
 civAir = {}
-civAir.version = "3.0.2"
+civAir.version = "3.1.0"
 --[[--
 	3.0.0 liveries support
 		  default liveries for Yak-50 (main test case)
@@ -15,7 +15,12 @@ civAir.version = "3.0.2"
 		  protest action 
 		  spawning now works correctly for groupType
 	3.0.2 clean-up
-
+	3.1.0 better verbosity for startup info 
+		  dicts for departOnly and landingOnly 
+		  correctly filter depart only, land only, closed at start 
+		  Syria multiple "H" airfields DCS bug 
+		  filter airfields with no runways
+		  getAirfieldNamed
 --]]--
 
 civAir.ups = 0.05 -- updates per second. 0.05  = once every 20 seconds 
@@ -60,8 +65,11 @@ civAir.maxIdle = 8 * 60 -- seconds of ide time before it is removed after landin
 
 civAir.trafficCenters = {} 
 civAir.excludeAirfields = {}
+civAir.excludeAirfieldsDict = {}
 civAir.departOnly = {} -- use only to start from 
+civAir.departOnlyDict = {} -- as above, by af name 
 civAir.landingOnly = {} -- use only to land at 
+civAir.landingOnlyDict = {} -- as above, by af name 
 civAir.inoutZones = {} -- off-map connector zones 
 
 civAir.requiredLibs = {
@@ -180,7 +188,7 @@ end
 
 function civAir.processZone(theZone)
 	local value = theZone:getStringFromZoneProperty("civAir", "")
-	local af = dcsCommon.getClosestAirbaseTo(theZone.point, 0) -- 0 = only airfields, not farp or ships 
+	local af = dcsCommon.getClosestAirbaseTo(theZone.point, 0) -- 0 = only airfields, not farp nor ships 
 	local inoutName = "***" .. theZone:getName() 
 	
 	if af then 
@@ -188,10 +196,13 @@ function civAir.processZone(theZone)
 		value = value:lower()
 		if value == "exclude" or value == "closed" then 
 			table.insert(civAir.excludeAirfields, afName)
+			civAir.excludeAirfieldsDict[afName] = afName
 		elseif dcsCommon.stringStartsWith(value, "depart") or dcsCommon.stringStartsWith(value, "start") or dcsCommon.stringStartsWith(value, "take") then 
 			table.insert(civAir.departOnly, afName)
+			civAir.departOnlyDict[afName] = afName -- can fold many in one 
 		elseif dcsCommon.stringStartsWith(value, "land") or dcsCommon.stringStartsWith(value, "arriv") then
 			table.insert(civAir.landingOnly, afName)
+			civAir.landingOnlyDict[afName] = afName -- can fold many on one
 		elseif dcsCommon.stringStartsWith(value, "inb") then 
 			table.insert(civAir.departOnly, inoutName) -- start in inbound zone
 			civAir.inoutZones[inoutName] = theZone
@@ -253,8 +264,8 @@ function civAir.filterAirfields(inAll, inFilter)
 end
 
 function civAir.getTwoAirbases()
-	local fAB -- first airbase to depart
-	local sAB -- second airbase to fly to 
+	local fAB -- name of first airbase to depart from
+	local sAB -- name second airbase to fly to 
 	
 	local departAB = dcsCommon.combineTables(civAir.trafficCenters, civAir.departOnly)
 	-- remove all currently excluded air bases from departure 
@@ -263,11 +274,14 @@ function civAir.getTwoAirbases()
 	if #filteredAB < 1 then 
 		trigger.action.outText("+++civA: too few departure airfields", 30)
 		return nil, nil 
+	else 
+--		trigger.action.outText("+++civA: source (first) fields available: " .. #filteredAB, 30)
 	end
 	
 	-- now pick the departure airfield
-	fAB = dcsCommon.pickRandom(filteredAB)
-
+	fAB = dcsCommon.pickRandom(filteredAB) -- returns an airfield name 
+--	trigger.action.outText("+++civA: picked first: <" .. fAB .. ">", 30)
+	
 	-- now generate list of landing airfields 
 	local arriveAB = dcsCommon.combineTables(civAir.trafficCenters, civAir.landingOnly)
 	-- remove all currently excluded air bases from arrival 
@@ -277,6 +291,8 @@ function civAir.getTwoAirbases()
 	if #filteredAB < 1 then 
 		trigger.action.outText("+++civA: too few arrival airfields", 30)
 		return nil, nil
+	else 
+--		trigger.action.outText("+++civA: second (ARV) fields available: " .. #filteredAB, 30)
 	end
 	
 	-- pick any second that are not the same 
@@ -285,10 +301,13 @@ function civAir.getTwoAirbases()
 		sAB = dcsCommon.pickRandom(filteredAB)
 		tries = tries + 1 -- only try 10 times
 	until fAB ~= sAB or tries > 10
-		
+	
+--	trigger.action.outText("+++civA: picked SECOND: <" .. sAB .. ">", 30)
+
+	
 	local civA = {}
 	if not (dcsCommon.stringStartsWith(fAB, '***')) then 
-		civA.AB = dcsCommon.getFirstAirbaseWhoseNameContains(fAB, 0) 
+		civA.AB = civAir.getAirfieldNamed(fAB) -- dcsCommon.getFirstAirbaseWhoseNameContains(fAB, 0) 
 		civA.name = civA.AB:getName()
 	else 
 		civA.zone = civAir.inoutZones[fAB]
@@ -296,16 +315,22 @@ function civAir.getTwoAirbases()
 	end 
 	local civB = {}
 	if not (dcsCommon.stringStartsWith(sAB, '***')) then 
-		civB.AB = dcsCommon.getFirstAirbaseWhoseNameContains(sAB, 0) 
+		civB.AB = civAir.getAirfieldNamed(sAB) -- dcsCommon.getFirstAirbaseWhoseNameContains(sAB, 0) 
 		civB.name = civB.AB:getName()
 	else 
 		civB.zone = civAir.inoutZones[sAB]
 		civB.name = civB.zone:getName() 
 	end 
 
+--	trigger.action.outText("+++civA: picked source AF <" .. civA.name .. "> and dest <" .. civB.name .. ">", 30)
+
 	return civA, civB -- fAB, sAB	
 end
 
+function civAir.getAirfieldNamed(name)
+	return Airbase.getByName(name)
+end
+
 function civAir.parkingIsFree(fromWP) 
 	-- iterate over all currently registred flights and make 
 	-- sure that their location isn't closer than 10m to my new parking 
@@ -684,24 +709,48 @@ function civAir.collectHubs()
 end
 
 function civAir.listTrafficCenters()
-	trigger.action.outText("Traffic Centers", 30)
+	local msg = "Traffic Centers:\n"
+	local other = false 
 	for idx, aName in pairs(civAir.trafficCenters) do
-		trigger.action.outText(aName, 30)
+		if other then msg = msg .. ", " end
+		msg = msg .. aName
+		other = true 
 	end
+	trigger.action.outText(msg .. "\n", 30)
 	
+	msg = "Departure-Only:\n"
+	other = false
 	if #civAir.departOnly > 0 then 
-		trigger.action.outText("Departure-Only:", 30)
 		for idx, aName in pairs(civAir.departOnly) do
-			trigger.action.outText(aName, 30)
+			if other then msg = msg .. ", " end
+			msg = msg .. aName
+			other = true
 		end
 	end
+	trigger.action.outText(msg .. "\n", 30)
 	
+	msg = "Landing-Only:\n"
+	other = false
 	if #civAir.landingOnly > 0 then 
-		trigger.action.outText("Arrival/Landing-Only:", 30)
 		for idx, aName in pairs(civAir.landingOnly) do
-			trigger.action.outText(aName, 30)
+			if other then msg = msg .. ", " end
+			msg = msg .. aName
+			other = true
 		end
 	end
+	trigger.action.outText(msg .. "\n", 30)
+	
+	
+	msg = "Closed:\n"
+	other = false
+	if #civAir.excludeAirfields > 0 then 
+		for idx, aName in pairs(civAir.excludeAirfields) do
+			if other then msg = msg .. ", " end
+			msg = msg .. aName
+			other = true
+		end
+	end
+	trigger.action.outText(msg .. "\n", 30)
 end
  
 -- start 
@@ -721,13 +770,27 @@ function civAir.start()
 	if (#civAir.trafficCenters + #civAir.departOnly < 1) or
 	   (#civAir.trafficCenters + #civAir.landingOnly < 1) 
 	then 
+		trigger.action.outText("+++civA: marked traffic centers:" .. #civAir.trafficCenters .. "\n    depart-only:" .. #civAir.departOnly .. "\n   landing-only: " .. #civAir.landingOnly .. "\n", 30 )
 		trigger.action.outText("+++civA: auto-populating", 30)
 		-- simply add airfields on the map
+		-- and filter those that are excluded, land-only or depart only 
 		local allBases = dcsCommon.getAirbasesWhoseNameContains("*", 0)
 		for idx, aBase in pairs(allBases) do 
 			local afName = aBase:getName()
-
-			table.insert(civAir.trafficCenters, afName)
+			if civAir.departOnlyDict[afName] or 
+			   civAir.landingOnlyDict[afName] or 
+			   civAir.excludeAirfieldsDict[afName] 
+			then 
+				trigger.action.outText("+++civA: filtering base " .. afName .. " for single-exception", 30)
+			else 
+				-- syria special proccing 
+				local rw = aBase:getRunways() 
+				if #rw < 1 then 
+--					trigger.action.outText(afName .. " has no runways, filtered", 30) 
+				else 	
+					table.insert(civAir.trafficCenters, afName)
+				end 
+			end
 		end
 	end
 	
diff --git a/modules/convoy.lua b/modules/convoy.lua
index 05f0e25..ba2e68c 100644
--- a/modules/convoy.lua
+++ b/modules/convoy.lua
@@ -1,5 +1,5 @@
 convoy = {}
-convoy.version = "1.1.0"
+convoy.version = "1.2.0"
 convoy.requiredLibs = {
 	"dcsCommon",
 	"cfxZones", 
@@ -32,7 +32,8 @@ VERSION HISTORY
 	  - warning when not onStart and no start?
 	  - say hi 
 	  - removed destination attribute 
-	  
+1.2.0 - convoyMethod 
+	  - convoyTriggerMethod 
 --]]--
 
 --[[-- CONVOY Structure
@@ -174,6 +175,9 @@ function convoy.readConvoyZone(theZone)
 			trigger.action.outText("+++CVY: Warning: Convoy zone <" .. theZone.name .. "> has disabled 'onStart' and has no 'spawn?' input. This convoy zone can't send out any convoys,", 30)
 		end
 	end
+	theZone.convoyMethod = theZone:getStringFromZoneProperty("convoyMethod", "inc")
+	theZone.convoyTriggerMethod = theZone:getStringFromZoneProperty("convoyTriggerMethod", "change") 
+	
 	--[[--
 	if theZone:hasProperty("destination") then -- remove me
 		theZone.destination = theZone:getStringFromZoneProperty("destination", "none")
@@ -560,7 +564,7 @@ function convoy.wpReached(gName, convName, idx, wpNum)
 			convoy.invokeArrivedCallbacks(theConvoy)
 			-- hit the output flag if defined 
 			if theZone.arrivedOut then 
-				theZone:pollFlag(theZone.arrivedOut, "inc")
+				theZone:pollFlag(theZone.arrivedOut, theZone.convoyMethod) -- "inc")
 			end 
 			-- remove convoy from watchlist 
 			convoy.convoys[convName] = nil 
@@ -845,7 +849,7 @@ function convoy.update()
 	-- check for flags 
 	for idx, theZone in pairs (convoy.zones) do 
 		if theZone.spawnFlag and 
-		theZone:testZoneFlag(theZone.spawnFlag, "change", "lastSpawnFlag") then
+		theZone:testZoneFlag(theZone.spawnFlag, theZone.convoyTriggerMethod, "lastSpawnFlag") then
 			convoy.startConvoy(theZone)
 		end
 	end
@@ -900,7 +904,7 @@ function convoy.statusUpdate() -- every 10 seconds
 			convoy.invokeAttackedCallbacks(theConvoy)
 			theZone = theConvoy.origin 
 			if theZone.attackedOut then 
-				theZone:pollFlag(theZone.attackedOut, "inc")
+				theZone:pollFlag(theZone.attackedOut, theZone.convoyMethod) -- "inc")
 			end
 		end
 		
@@ -909,7 +913,7 @@ function convoy.statusUpdate() -- every 10 seconds
 			convoy.invokeDestroyedCallbacks(theConvoy)
 			theZone = theConvoy.origin 
 			if theZone.deadOut then 
-				theZone:pollFlag(theZone.deadOut, "inc")
+				theZone:pollFlag(theZone.deadOut, theZone.convoyMethod) -- "inc")
 			end
 			trigger.action.outTextForCoalition(theConvoy.coa, "Convoy " .. convName .. " enroute to " .. theConvoy.dest .. " was destroyed.", 30)
 			trigger.action.outSoundForCoalition(theConvoy.coa, convoy.actionSound)
diff --git a/modules/heloTroops.lua b/modules/heloTroops.lua
index ebed7b3..a741ed1 100644
--- a/modules/heloTroops.lua
+++ b/modules/heloTroops.lua
@@ -1,5 +1,5 @@
 cfxHeloTroops = {}
-cfxHeloTroops.version = "3.1.5"
+cfxHeloTroops.version = "4.0.0"
 cfxHeloTroops.verbose = false 
 cfxHeloTroops.autoDrop = true 
 cfxHeloTroops.autoPickup = false 
@@ -25,6 +25,9 @@ cfxHeloTroops.requestRange = 500 -- meters
 	   - loadSound and disembarkSound 
  3.1.4 - guarding destination access in save 	  
  3.1.5 - more guarding of destination access 
+ 4.0.0 - added dropZones
+	   - enforceDropZones
+	   - coalition for drop zones 
 --]]--
 
 
@@ -37,10 +40,24 @@ cfxHeloTroops.requiredLibs = {
 
 cfxHeloTroops.unitConfigs = {} -- all configs are stored by unit's name 
 cfxHeloTroops.troopWeight = 100 -- kg average weight per trooper 
+cfxHeloTroops.dropZones = {}
 
 -- persistence support 
 cfxHeloTroops.deployedTroops = {}
 
+--
+-- drop zones 
+--
+function cfxHeloTroops.processDropZone(theZone)
+	theZone.droppedFlag = theZone:getStringFromZoneProperty("dropZone!", "cfxNone")
+	theZone.dropMethod = theZone:getStringFromZoneProperty("dropMethod", "inc")
+	theZone.dropCoa = theZone:getCoalitionFromZoneProperty("coalition", 0)
+	theZone.autoDespawn = theZone:getNumberFromZoneProperty("autoDespawn", -1)
+end
+
+--
+-- comms
+--
 function cfxHeloTroops.resetConfig(conf)
 	conf.autoDrop = cfxHeloTroops.autoDrop --if true, will drop troops on-board upon touchdown
 	conf.autoPickup = cfxHeloTroops.autoPickup -- if true will load nearest troops upon touchdown
@@ -576,16 +593,33 @@ function cfxHeloTroops.scoreWhenCapturing(theUnit)
 	end
 end
 
+function cfxHeloTroops.isInsideDropZone(theUnit)
+	local p = theUnit:getPoint()
+	for idx, theZone in pairs (cfxHeloTroops.dropZones) do 
+		if theZone:isPointInsideZone(p) then return true end 
+	end
+	return false 
+end
+
 function cfxHeloTroops.doDeployTroops(args)
 	local conf = args[1]
 	local what = args[2]
-	-- deploy the troops I have on board in formation
+	local theUnit = conf.unit
+	local theGroup = theUnit:getGroup()
+	local gid = theGroup:getID()
+	local inside = cfxHeloTroops.isInsideDropZone(theUnit)
+	if (not inside) and cfxHeloTroops.enforceDropZones then 
+		trigger.action.outTextForGroup(gid, "You are outside an disembark/drop zone.", 30)
+		return 
+	end 
+	
+	-- deploy the troops I have on board
 	cfxHeloTroops.deployTroopsFromHelicopter(conf)
 	
 	-- interface with playerscore if we dropped 
 	-- inside an enemy-owned zone 
 	if cfxPlayerScore and cfxOwnedZones then 
-		local theUnit = conf.unit
+		--local theUnit = conf.unit
 		cfxHeloTroops.scoreWhenCapturing(theUnit)
 	end
 	
@@ -630,7 +664,7 @@ function cfxHeloTroops.deployTroopsFromHelicopter(conf)
 	end
 	
 	local chopperZone = cfxZones.createSimpleZone("choppa", p, 12) -- 12 m radius around choppa
-	local theCoalition = theUnit:getGroup():getCoalition() -- make it choppers COALITION
+	local theCoalition = theUnit:getGroup():getCoalition() -- make it chopper's COALITION
 	local theGroup, theData = cfxZones.createGroundUnitsInZoneForCoalition (
 				theCoalition, 												
 				theName, -- group name, may be tracked 
@@ -677,8 +711,39 @@ function cfxHeloTroops.deployTroopsFromHelicopter(conf)
 			end
 		end
 	end
+	
+	-- bang on all dropZones that we can find 
+	for name, theZone in pairs(cfxHeloTroops.dropZones) do 
+		-- can employ coalition test here as well, maybe later? 
+		if theZone:isPointInsideZone(p) then 
+			if theZone.dropCoa == 0 or theCoalition == theZone.dropCoa then 
+				if cfxHeloTroops.verbose or theZone.verbose then 
+					trigger.action.outText("+++Helo: will bang! on dropZone <" .. theZone.name .. "> output dropZone! <" .. theZone.droppedFlag .. "> with method <" .. theZone.dropMethod .. ">", 30)
+				end 
+				theZone:pollFlag(theZone.droppedFlag, theZone.dropMethod)
+			end 
+			if theZone.autoDespawn and theZone.autoDespawn > 0 then 
+				args = {}
+				args.theZone = theZone 
+				args.theGroup = theGroup
+				timer.scheduleFunction(cfxHeloTroops.autoDespawn, args, timer.getTime() + theZone.autoDespawn)
+			end
+		end
+	end 
 end
 
+function cfxHeloTroops.autoDespawn(args)
+	if not args then return end 
+	local theZone = args.theZone 
+	local theGroup = args.theGroup 
+	if theZone.verbose then 
+		trigger.action.outText("+++Helo: auto-despawning drop in drop zone <" .. theZone.name .. ">", 30)
+	end 
+	if not theGroup then return end 
+	if Group.isExist(theGroup) then 
+		Group.destroy(theGroup)
+	end
+end
 --
 -- Loading Troops
 --
@@ -882,7 +947,7 @@ function cfxHeloTroops.readConfigZone()
 		theZone = cfxZones.createSimpleZone("heloTroopsConfig")
 	end 
 
-	cfxHeloTroops.verbose = theZone:getBoolFromZoneProperty("verbose", false)
+	cfxHeloTroops.verbose = theZone.verbose
 	
 	if theZone:hasProperty("legalTroops") then 
 		local theTypesString = theZone:getStringFromZoneProperty("legalTroops", "")
@@ -907,6 +972,7 @@ function cfxHeloTroops.readConfigZone()
 	cfxHeloTroops.disembarkSound = theZone:getStringFromZoneProperty("disembarkSound", cfxHeloTroops.actionSound)
 	
 	cfxHeloTroops.requestRange = theZone:getNumberFromZoneProperty("requestRange", 500)
+	cfxHeloTroops.enforceDropZones = theZone:getBoolFromZoneProperty("enforceDropZones", false)
 	-- add own troop carriers 
 	if theZone:hasProperty("troopCarriers") then 
 		local tc = theZone:getStringFromZoneProperty("troopCarriers", "UH-1D")
@@ -999,6 +1065,13 @@ function cfxHeloTroops.start()
 	-- read config zone
 	cfxHeloTroops.readConfigZone()
 	
+	-- read drop zones 
+	local attrZones = cfxZones.getZonesWithAttributeNamed("dropZone!")
+	for k, aZone in pairs(attrZones) do 
+		cfxHeloTroops.processDropZone(aZone)
+		cfxHeloTroops.dropZones[aZone.name] = aZone 
+	end
+	
 	-- start housekeeping 
 	cfxHeloTroops.houseKeeping()
 	
diff --git a/modules/playerScore.lua b/modules/playerScore.lua
index 1d45727..cfe6209 100644
--- a/modules/playerScore.lua
+++ b/modules/playerScore.lua
@@ -1,5 +1,5 @@
 cfxPlayerScore = {}
-cfxPlayerScore.version = "3.3.1"
+cfxPlayerScore.version = "4.0.0"
 cfxPlayerScore.name = "cfxPlayerScore" -- compatibility with flag bangers
 cfxPlayerScore.badSound = "Death BRASS.wav"
 cfxPlayerScore.scoreSound = "Quest Snare 3.wav"
@@ -18,7 +18,9 @@ cfxPlayerScore.firstSave = true -- to force overwrite
 	3.3.0 - case INsensitivity for all typeScore objects 
 	3.3.1 - fixes for DCS oddity in events after update 
 		  - cleanup 
-		  
+	4.0.0 - own event handling, disco from dcsCommon 
+		  - early landing detection (unitSpawnTime)
+	
 	TODO: Kill event no longer invoked for map objetcs, attribute 
 	      to faction now, reverse invocation direction with PlayerScore 
 --]]--
@@ -51,7 +53,7 @@ cfxPlayerScore.train = 5
 cfxPlayerScore.landing = 0 -- if > 0 it scores as feat
 
 cfxPlayerScore.unit2player = {} -- lookup and reverse look-up 
-
+cfxPlayerScore.unitSpawnTime = {} -- lookup by unit name to prevent early landing 
 function cfxPlayerScore.addSafeZone(theZone)
 	theZone.scoreSafe = theZone:getCoalitionFromZoneProperty("scoreSafe", 0)
 	table.insert(cfxPlayerScore.safeZones, theZone)
@@ -570,7 +572,7 @@ function cfxPlayerScore.awardScoreTo(killSide, theScore, killerName)
 end
 
 --
--- EVENT HANDLING
+-- EVENT PROCESSING / HANDLING
 --
 function cfxPlayerScore.linkUnitWithPlayer(theUnit)
 	-- create the entries for lookup and reverseLooup tables
@@ -583,7 +585,7 @@ function cfxPlayerScore.unlinkUnit(theUnit)
 	local uName = theUnit:getName()
 	cfxPlayerScore.unit2player[uName] = nil 	
 end
-
+--[[--
 function cfxPlayerScore.preProcessor(theEvent)
 	-- return true if the event should be processed
 	-- by us
@@ -721,10 +723,13 @@ function cfxPlayerScore.preProcessor(theEvent)
 	
 	return false 
 end
+--]]--
 
+--[[--
 function cfxPlayerScore.postProcessor(theEvent)
 	-- don't do anything
 end
+--]]--
 
 function cfxPlayerScore.isStaticObject(theUnit) 
 	if not theUnit.getGroup then return true end 
@@ -1091,7 +1096,165 @@ function cfxPlayerScore.handlePlayerDeath(theEvent)
 	end
 end
 
-function cfxPlayerScore.handlePlayerEvent(theEvent)
+--
+-- event detection 
+--
+function cfxPlayerScore.isScoreEvent(theEvent)
+	-- return true if the event results in a score event
+	if theEvent.initiator  == nil then 
+		return false 
+	end 
+	if cfxPlayerScore.verbose then 
+		trigger.action.outText("Event preproc: " .. theEvent.id .. " (" .. dcsCommon.event2text(theEvent.id) .. ")", 30)
+		if theEvent.id == 8 or theEvent.id == 30 then -- dead or lost event 
+			local who = theEvent.initiator
+			local name = "(nil ini)"
+			if who then 
+				name = "(inval object)"
+				if who.getName then name = who:getName() end 
+			end 
+			trigger.action.outText("Dead/Lost subject: <" .. name .. ">", 30)
+		end 
+		if theEvent.id == 2 then -- hit
+			local who = theEvent.initiator
+			local name = "(nil ini)"
+			if who then 
+				name = "(inval initi)"
+				if who.getName then name = who:getName() end 
+				if not name then -- WTF??? could be a weapon 
+					name = "!nil getName!"
+					if who.getTypeName then name = who:getTypeName() end 
+					if not name then 
+						name = "WTFer"
+					end
+				end
+			end
+			
+			local hit = theEvent.object
+			local hname = "(nil ini)"
+			if hit then 
+				hname = "(inval object)"
+				if hit.getName then hname = hit:getName() end 
+			end
+			trigger.action.outText("o:<" .. name .. "> hit <" .. hname .. ">", 30)
+		end
+	end 
+	
+	-- check if this was FORMERLY a player plane 
+	local theUnit = theEvent.initiator 
+	if not theUnit.getName then return end -- fix for DCS update bug 
+	local uName = theUnit:getName()
+	if cfxPlayerScore.unit2player[uName] then 
+		-- this requires special IMMEDIATE handling when event is
+		-- one of the below 		
+		if theEvent.id == 5 or -- crash 
+		   theEvent.id == 8 or -- dead 
+	       theEvent.id == 9 or -- pilot_dead
+		   theEvent.id == 30 or -- unit loss 
+	       theEvent.id == 6 then -- eject 
+			-- these can lead to a pilot demerit
+			-- event does NOT have a player
+			cfxPlayerScore.handlePlayerDeath(theEvent)
+			return false -- false = no score event (any more)
+	    end 
+	end
+	
+	-- from here on, initiator must be player 
+	if not theUnit.getPlayerName or  
+	   not theUnit:getPlayerName() then 
+	   return false 
+	end 
+	if theEvent.id == 28 then -- kill, but only with target
+		local killer = theEvent.initiator 
+		if not theEvent.target then 
+			if cfxPlayerScore.verbose then 
+				trigger.action.outText("+++scr kill nil TARGET", 30) 
+			end 
+			return false 
+		end 
+		-- if there are kill zones, we filter all kills that happen outside of kill zones 
+		if #cfxPlayerScore.killZones > 0 then
+			local pLoc = theUnit:getPoint() 
+			local tLoc = theEvent.target:getPoint()
+			local isIn, percent, dist, theZone = cfxZones.pointInOneOfZones(tLoc, cfxPlayerScore.killZones)
+			if not isIn then 
+				if cfxPlayerScore.verbose then 
+					trigger.action.outText("+++pScr: kill detected, but target <" .. theEvent.target:getName() .. "> was outside of any kill zones", 30)
+				end
+				return false 
+			end
+			if theZone.duet and not cfxZones.pointInZone(pLoc, theZone) then 
+				-- player must be in same zone but was not
+				if cfxPlayerScore.verbose then 
+					trigger.action.outText("+++pScr: kill detected, but player <" .. theUnit:getPlayerName() .. "> was outside of kill zone <" .. theZone.name .. ">", 30)
+				end
+				return false
+			end			
+		end
+		return true 
+	end
+	
+	-- birth event for players initializes score if 
+	-- not existed, and nils the queue 
+	if theEvent.id == 15 then -- player birth
+		-- link player and unit
+		cfxPlayerScore.linkUnitWithPlayer(theUnit)
+		cfxPlayerScore.unitSpawnTime[uName] = timer.getTime() -- to detect 'early landing' 
+--		trigger.action.outText("Birth event", 30)
+		return true 
+	end
+	
+	-- take off. overwrites timestamp for last landing 
+	-- so a blipping t/o does nor count. Pre-proc only 
+	if theEvent.id == 3 or theEvent.id == 54 then 
+		local now = timer.getTime()
+		local playerName = theUnit:getPlayerName() 
+		cfxPlayerScore.lastPlayerLanding[playerName] = now -- overwrite 
+		return false 
+	end
+	
+	-- landing can score. but only the first landing in x seconds
+	-- and has spawned more than 10 seconds before 
+	-- landing in safe zone promotes any queued scores to 
+	-- permanent if enabled, then nils queue
+	if theEvent.id == 4 or theEvent.id == 55 then
+--		trigger.action.outText("LANDING event", 30)	
+		-- player landed. filter multiple landed events
+		local now = timer.getTime()
+		local playerName = theUnit:getPlayerName() 
+		-- if player spawns on ground, DCS now can post a 
+		-- "landing" event. filter 
+		if cfxPlayerScore.unitSpawnTime[uName] and 
+			now - cfxPlayerScore.unitSpawnTime[uName] < 10 
+		then 
+			cfxPlayerScore.lastPlayerLanding[playerName] = now -- just for the sake of it 
+--			trigger.action.outText("(DCS early landing bug ignored)", 30)
+			return false 
+		end 		
+--		trigger.action.outText("Time since spawn: " .. now - cfxPlayerScore.unitSpawnTime[uName], 30)
+		local lastLanding = cfxPlayerScore.lastPlayerLanding[playerName]
+		cfxPlayerScore.lastPlayerLanding[playerName] = now -- overwrite 
+		if lastLanding and lastLanding + cfxPlayerScore.delayBetweenLandings > now then 
+			if cfxPlayerScore.verbose then 
+				trigger.action.outText("+++pScr: Player <" .. playerName .. "> touch-down ignored: too soon after last.", 30)
+				trigger.action.outText("now is <" .. now .. ">, between is <" .. cfxPlayerScore.delayBetweenLandings .. ">, last + between is <" .. lastLanding + cfxPlayerScore.delayBetweenLandings .. ">", 30)
+			end 
+			-- filter this event, too soon 
+			return false 
+		end
+		return true 
+	end
+	
+	return false 
+end
+
+function cfxPlayerScore:onEvent(theEvent)
+	if cfxPlayerScore.isScoreEvent(theEvent) then 
+		cfxPlayerScore.handleScoreEvent(theEvent)
+	end 
+end 
+
+function cfxPlayerScore.handleScoreEvent(theEvent)
 	if theEvent.id == 28 then 
 		-- kill from player detected.
 		cfxPlayerScore.killDetected(theEvent)	
@@ -1134,7 +1297,9 @@ function cfxPlayerScore.handlePlayerEvent(theEvent)
 		end	
 	end
 end
-
+--
+-- Config handling 
+--
 function cfxPlayerScore.readConfigZone(theZone)
 	cfxPlayerScore.verbose = theZone.verbose 
 	-- default scores 
@@ -1450,9 +1615,10 @@ function cfxPlayerScore.start()
 	end
 
 	-- subscribe to events and use dcsCommon's handler structure
-	dcsCommon.addEventHandler(cfxPlayerScore.handlePlayerEvent,
-							  cfxPlayerScore.preProcessor,
-							  cfxPlayerScore.postProcessor) 
+	-- dcsCommon.addEventHandler(cfxPlayerScore.handlePlayerEvent,
+--							  cfxPlayerScore.preProcessor,
+--							  cfxPlayerScore.postProcessor) 
+	world.addEventHandler(cfxPlayerScore)
 	-- now load all save data and populate map with troops that
 	-- we deployed last save. 
 	if persistence then 
diff --git a/modules/radioMenus.lua b/modules/radioMenus.lua
index 457495a..768d45b 100644
--- a/modules/radioMenus.lua
+++ b/modules/radioMenus.lua
@@ -21,6 +21,7 @@ radioMenu.lateGroups = {} -- dict by ID
 		  - added dynamic player support 
 	4.0.1 - MX no longer optional, so ask for it
 	4.0.2 - ackSnd now also broadcasts to all if no group 
+	4.1.0 - outX --> valX verification. putting back in optional outX  
 --]]--
 
 function radioMenu.addRadioMenu(theZone)
@@ -437,6 +438,11 @@ function radioMenu.createRadioMenuWithZone(theZone)
 	if theZone:hasProperty("radioMethod") then 
 		theZone.radioMethod = theZone:getStringFromZoneProperty( "radioMethod", "inc")
 	end
+	-- note: outX currently overridden with valX 
+	theZone.outMethA = theZone:getStringFromZoneProperty("outA", theZone.radioMethod)
+	theZone.outMethB = theZone:getStringFromZoneProperty("outB", theZone.radioMethod)
+	theZone.outMethC = theZone:getStringFromZoneProperty("outC", theZone.radioMethod)
+	theZone.outMethD = theZone:getStringFromZoneProperty("outD", theZone.radioMethod)
 	
 	theZone.radioTriggerMethod = theZone:getStringFromZoneProperty("radioTriggerMethod", "change")
 	
@@ -731,6 +737,7 @@ function radioMenu.doMenuX(args)
 	local outVal = theZone.outValA
 	local ack = theZone.ackA 
 	local ackSnd = theZone.ackASnd
+	local meth = theZone.outMethA -- currently not used 
 	
 	-- decode A..X
 	if theItemIndex == "B"then 
@@ -740,6 +747,7 @@ function radioMenu.doMenuX(args)
 		outVal = theZone.outValB
 		ack = theZone.ackB 
 		ackSnd = theZone.ackBSnd
+		meth = theZone.outMethB
 	elseif theItemIndex == "C" then 
 		cd = radioMenu.cdByGID(theZone.mcdC, theZone, theGroup) -- theZone.mcdC
 		busy = theZone.busyC 
@@ -747,6 +755,7 @@ function radioMenu.doMenuX(args)
 		outVal = theZone.outValC
 		ack = theZone.ackC 
 		ackSnd = theZone.ackCSnd
+		meth = theZone.outMethC
 	elseif theItemIndex == "D" then 
 		cd = radioMenu.cdByGID(theZone.mcdD, theZone, theGroup) -- theZone.mcdD
 		busy = theZone.busyD 
@@ -754,6 +763,7 @@ function radioMenu.doMenuX(args)
 		outVal = theZone.outValD
 		ack = theZone.ackD
 		ackSnd = theZone.ackDSnd
+		meth = theZone.outMethD
 	end
 	
 	-- see if we are on cooldown 
@@ -793,6 +803,7 @@ function radioMenu.doMenuX(args)
 	-- poll flag, override with outVal if set 
 	if outVal then 
 		--outVal = "#"..outVal -- we force immediate mode
+		-- now replaced by 'valX' attribute 
 		theZone:pollFlag(theFlag, outVal)
 		if theZone.verbose or radioMenu.verbose then 
 			trigger.action.outText("+++menu: overriding index " .. theItemIndex .. " output method <" .. theZone.radioMethod .. "> with immediate value <" .. outVal .. ">", 30)
diff --git a/modules/theDebugger.lua b/modules/theDebugger.lua
index 892f8f8..9acf2d8 100644
--- a/modules/theDebugger.lua
+++ b/modules/theDebugger.lua
@@ -1,5 +1,5 @@
 debugger = {}
-debugger.version = "3.0.0"
+debugger.version = "3.1.0"
 debugDemon = {}
 debugDemon.version = "2.1.0"
 
@@ -45,7 +45,8 @@ debugger.log = ""
 		  - x *f 
 		  - x *z 
 		  - x ? 
-
+	3.1.0 - new DCS world events 57-61
+		  - x ! xref hanging/unconnected 
 			
 --]]--
 
@@ -122,7 +123,11 @@ debugDemon.eventList = {
   ["54"] = "S_EVENT_MISSION_WINNER = 54", 
   ["55"] = "S_EVENT_POSTPONED_TAKEOFF = 55", 
   ["56"] = "S_EVENT_POSTPONED_LAND = 56", 
-  ["57"] = "S_EVENT_MAX = 57",
+  ["57"] = "S_EVENT_SIMULATION_FREEZE  = 57",
+  ["58"] = "S_EVENT_SIMULATION_UNFREEZE = 58",
+  ["59"] = "S_EVENT_HUMAN_AIRCRAFT_REPAIR_START = 59",
+  ["60"] = "S_EVENT_HUMAN_AIRCRAFT_REPAIR_FINISH = 60",
+  ["61"] = "S_EVENT_MAX = 61",
 }
 
 debugger.spawnTypes = {
@@ -150,7 +155,7 @@ debugger.spawnTypes = {
 -- XREF MODULE
 --
 xref = {}
-xref.version = "1.0.0"
+xref.version = "1.1.0"
 xref.dmlObjects = {} -- dict by zone name:upper() 
 -- has inputs: dict of string for each '?' input, contains input flag name 
 -- has output: dict of array for each output '!', contains output flag names as array 
@@ -158,7 +163,7 @@ xref.flags = {} -- dict by flag name
 -- has froms: dict of zone of attributes that can write to this flags 
 -- has tos: dict of zones of attributes that read from flag 
 
-function xref.getDmlObject(name)
+function xref.getDmlObject(name) -- lazy alloc 
 	name = name:upper() 
 	local theObject = xref.dmlObjects[name]
 	if not theObject then 
@@ -170,7 +175,7 @@ function xref.getDmlObject(name)
 	return theObject 
 end
 
-function xref.getFlag(name, theZone)
+function xref.getFlag(name, theZone) -- lazy alloc 
 	if theZone and dcsCommon.stringStartsWith(name, "*") then 
 		-- local name conversion 
 		name = theZone.name .. name 
@@ -178,8 +183,8 @@ function xref.getFlag(name, theZone)
 	local theFlag = xref.flags[name]
 	if not theFlag then 
 		theFlag = {}
-		theFlag.froms = {} -- dict by zone name/output that write to this flag
-		theFlag.tos = {} -- dict by zone name / inputs that reads from this flag
+		theFlag.froms = {} -- dict by zone name: OUTPUTS that write to this flag
+		theFlag.tos = {} -- dict by zone name: INPUTS that read from this flag
 		xref.flags[name] = theFlag
 	end
 	return theFlag 
@@ -236,20 +241,21 @@ function xref.scanMissionZones()
 		-- iterate all properties
 		local attributes = theZone:getAllZoneProperties()
 		for name, value in pairs(attributes) do 
+			local n2 = dcsCommon.trim(name)
 			-- find inputs 
-			if dcsCommon.stringEndsWith(name, "?") then 
-				xref.addInput(theZone, name, value)
+			if dcsCommon.stringEndsWith(n2, "?") then 
+				xref.addInput(theZone, n2, value)
 			end
 		
 			-- find outputs
-			if dcsCommon.stringEndsWith(name, "!") then 
-				xref.addOutput(theZone, name, value)
+			if dcsCommon.stringEndsWith(n2, "!") then 
+				xref.addOutput(theZone, n2, value)
 			end
 		 
 			-- other stuff, e.g. "#"
 			-- find outputs
-			if dcsCommon.stringEndsWith(name, "#") then 
-				xref.addOutput(theZone, name, value)
+			if dcsCommon.stringEndsWith(n2, "#") then 
+				xref.addOutput(theZone, n2, value)
 			end
 		end
 	end
@@ -289,8 +295,6 @@ function xref.xrefFlag(name)
 			end 
 		end 
 	end 
-	
---	trigger.action.outText(msg, 30)
 	return msg 
 	
 end
@@ -323,9 +327,7 @@ function xref.xrefZone(name, theObject)
 		end 
 	end 
 
---	trigger.action.outText(msg, 30)
-	return msg 
-	
+	return msg 	
 end 
 
 function xref.xrefName(name)
@@ -362,41 +364,93 @@ function xref.allZones()
 end 
 
 function xref.xall()
-	msg = ""
+	local msg = ""
 	-- now dump all flags 
 	for flagName, data in pairs (xref.flags) do 
-		-- msg = msg .. xref.xrefFlag(flagName) 
 		msg = msg .. xref.xrefName(flagName)
 	end 
 	
 	-- dump all zones 
 	for zoneName, data in pairs(xref.dmlObjects) do 
---		msg = msg .. xref.xrefZone(zoneName, data)
 		msg = msg .. xref.xrefName(zoneName)
 	end 
 	return msg
---	trigger.action.outText(msg, 30)
 end
 
+function xref.unconnected()
+	local msg = "xref: unconnected flags/commands:\n"
+	local badFroms = {}
+	local badTos = {}
+	for name, theFlag in pairs(xref.flags) do 
+		-- look for single-direction flags, i.e those that have 
+		-- no froms or no tos.
+		if dcsCommon.getSizeOfTable(theFlag.froms) < 1 then 
+			-- this flag has output referencing it, so the input hangs 
+			badFroms[name] = theFlag 
+		end 
+		if dcsCommon.getSizeOfTable(theFlag.tos) < 1 then 
+			-- this flag has output referencing it, so the input hangs 
+			badTos[name] = theFlag 
+		end
+	end
+	local hasUnconnected = false 
+	if dcsCommon.getSizeOfTable(badFroms) > 0 then
+		msg = msg .. "<Flag/Command> used at [zone]:INPUT that listens for/to nothing:\n"
+		for name, theFlag in pairs(badFroms) do 
+			msg = msg .. "    <" .. name .. ">: "
+			local froms = theFlag.tos -- crossing from and to here!
+			for zName, outList in pairs(froms) do 
+				msg = msg .. "[" .. zName .. "]:"
+				local c = 0 
+				for idx, outName in pairs(outList) do 
+					if c > 0 then msg = msg .. ", " end 
+					c = 1 
+					msg = msg .. outName
+				end 
+				msg = msg .. "\n"
+			end
+		end
+		msg = msg .. "  -- END OF LIST --\n\n"
+		hasUnconnected = true 
+	end 
+	
+	if dcsCommon.getSizeOfTable(badTos) > 0 then
+		msg = msg .. "<Flag/Command> used at [zone]:OUTPUT that sends to nobody:\n"
+		for name, theFlag in pairs(badTos) do 
+			msg = msg .. "    <" .. name .. ">: "
+			local tos = theFlag.froms -- crossing!
+			for zName, inList in pairs(tos) do 
+				msg = msg .. "[" .. zName .. "]:"
+				local c = 0 
+				for idx, inName in pairs(inList) do 
+					if c > 0 then msg = msg .. ", " end 
+					c = 1 
+					msg = msg .. inName
+				end 
+			end
+			msg = msg .. "\n"
+		end
+		hasUnconnected = true
+		msg = msg .. "  -- END OF LIST --\n\n"
+	end 
+	
+	if not hasUnconnected then 
+		msg = msg .. "\n  -- NONE --\n"
+	end 
+	
+	return msg
+end 	
+
 function xref.start()
 	xref.scanMissionZones()
 	local flagNum = dcsCommon.getSizeOfTable(xref.flags)
 	local dmlObNum = dcsCommon.getSizeOfTable(xref.dmlObjects)
-	trigger.action.outText("XRef v" .. xref.version .. " full DML object scan on mission complete:\n<" .. flagNum .. "> flags are referenced in <" .. dmlObNum .. "> DML zones", 30)
-	
---	trigger.action.outText(xref.xall(), 30)
+	trigger.action.outText("XRef v" .. xref.version .. " full DML object scan on mission complete:\n<" .. flagNum .. "> flags are referenced in <" .. dmlObNum .. "> DML zones", 30)	
 end
 
 -- run the xref 
 xref.start()
 
---[[--
-	to do
-		scan messenger and wildcards for flag access 
-		
---]]--
-
-
 --
 -- DEBUGGER MAIn
 --
@@ -436,7 +490,6 @@ function debugger.saveLog(name)
 	end
 end
 
-
 --
 -- tracking flags 
 --
@@ -764,7 +817,6 @@ function debugger.update()
 	end
 end
 
-
 --
 -- Config & Start
 --
@@ -950,7 +1002,6 @@ function debugDemon:onEvent(theEvent)
 	end
     
     if theEvent.id == world.event.S_EVENT_MARK_CHANGE then
---		trigger.action.outText("debugger: Mark Change event received", 30)
 		-- when changed, the mark's text is examined for a command
 		-- if it starts with the 'mark' string ("-" by  default) it is processed
 		-- by the command processor
@@ -958,42 +1009,26 @@ function debugDemon:onEvent(theEvent)
 		-- else an error is displayed and the mark remains.
 		if debugDemon.hasMark(theEvent.text) then 
 			-- strip the mark 
-			local cCommand = dcsCommon.clone(theEvent.text, true)
+			local cCommand = dcsCommon.clone(theEvent.text)
 			local commandString = cCommand:sub(1+debugDemon.markOfDemon:len())
 			-- break remainder apart into <command> <arg1> ... <argn>
 			local commands = dcsCommon.splitString(commandString, debugDemon.splitDelimiter)
 
 			-- this is a command. process it and then remove it if it was executed successfully
-			local cTheEvent = dcsCommon.clone(theEvent, true) -- strip meta tables
+			local cTheEvent = dcsCommon.clone(theEvent) -- strip meta tables
 			local args = {commands, cTheEvent}	
 			-- defer execution for 0.1s to get out of trx bracked
 			timer.scheduleFunction(debugDemon.deferredDebug, args, timer.getTime() + 0.1)
 			debugDemon.activeIdx = cTheEvent.idx 
-			--[[--
-			local success = debugDemon.executeCommand(commands, cTheEvent) -- execute on a clone, not original 
-						
-			-- remove this mark after successful execution
-			if success then 
-				trigger.action.removeMark(theEvent.idx) 
-			else 
-				-- we could play some error sound
-			end
-			--]]--
 		end 
     end 
 	
 	if theEvent.id == world.event.S_EVENT_MARK_REMOVED then
---		trigger.action.outText("Mark Remove received, removing idx <" .. theEvent.idx .. ">.", 30)
 		debugDemon.activeIdx = nil 
     end
 end
 
 function debugDemon.deferredDebug(args)
---	trigger.action.outText("enter deferred debug command", 30)
---	if not debugDemon.activeIdx then 
---		trigger.action.outText("Debugger: window was closed, debug command ignored.", 30)
---		return 
---	end 
 	local commands = args[1]
 	local cTheEvent = args[2]
 	local success = debugDemon.executeCommand(commands, cTheEvent) -- execute on a clone, not original 
@@ -1884,8 +1919,11 @@ function debugDemon.processXrefCommand(args, event)
 	if not larg or larg == "" then larg = "?" end 
 	larg = larg:lower() 
 	if larg == "?" then 
-		debugger.outText("*** xRef: ? = help (this), * = xref all, *f = list all DML flags, *z = list all DML zones, <name> xref flag or zone", 30) 
+		debugger.outText("*** xRef: ? = help (this), ! = xref all 'hanging' or unconnected flags/commands, * = xref all, *f = list all DML flags, *z = list all DML zones, <name> xref flag or zone", 30) 
 		return true -- leave up 
+	elseif larg == "!" then 
+		debugger.outText(xref.unconnected(), 30)
+		return true 
 	elseif larg == "*" then 
 		debugger.outText(xref.xall(), 30)
 		return true 
diff --git a/tutorial & demo missions/demo - Inferno at Sea.miz b/tutorial & demo missions/demo - Inferno at Sea.miz
new file mode 100644
index 0000000..4f583aa
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diff --git a/tutorial & demo missions/demo - The Yeller Model.miz b/tutorial & demo missions/demo - The Yeller Model.miz
new file mode 100644
index 0000000..b4f04db
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diff --git a/tutorial & demo missions/demo - helo cargo.miz b/tutorial & demo missions/demo - helo cargo.miz
index 243ea67..4c2f11c 100644
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