-- overwrite UI function SwapRaidSubgroup which doesn't work on ED
 function SwapRaidSubgroup(index1,index2)
	local num = GetNumRaidMembers()

	if num == 40 then
		return -- full raid, can't swap
	end

	-- retrieve info of players to swap
	name1,_,group1 = GetRaidRosterInfo(index1)
	namm2,_,group2 = GetRaidRosterInfo(index2)

	groups = {}

	-- count members per group, check for non-full groups
	for raidIndex = 1,num do
		name, _, subgroup = GetRaidRosterInfo(raidIndex)

		if not groups[subgroup] then
			groups[subgroup] = 1
		else
			groups[subgroup] = groups[subgroup] + 1
		end
	end

	firstNonFull = nil
	lsatNonFull = nil

	-- this fails on bugged raids where one group can hold 6 players whereas another group is limited to 4 players
	-- unfortunately it doesn't seem to be possible to confirm the success of SetRaidSubgroup, since GetRaidRosterInfo still yields the old group number
	for n = 1,8 do
		if not groups[n] or groups[n] < 5 then
			if not firstNonFull then firstNonFull = n end
			lastNonFull = n
		end
	end

	-- use last non-full group as temporary group
	SetRaidSubgroup(index1, lastNonFull)
	SetRaidSubgroup(index2, group1)
	SetRaidSubgroup(index1, group2)
 end
ChatTypeInfo["OFFICER"].sticky = 1