Just do this manual, that would be your best bet.
You could add towards a script a checker for certain creatures so it will ring an alarm for you.
I found a lua somewhere who checked for x amount of creatures, i kinda made some adjustments and it should give a ring when x monster is on screen.
Try this out:
lua code:
local specialMonsters = {"vampire","Zevelon Duskbringer"}
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-----------------------------------------------
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Module("Boss Alarm", function(self)
local c = Creature(Self.TargetID())
local useSpecial = c and table.find(specialMonsters, c:Name())
if useSpecial then
alert()
self:Delay(3000)
elseif not useSpecial then
self:Delay(3000)
end
end)