Try this:
Make a Trigger,
Make its axis' 0
Call it: Trig1
Put whatever condition you want that'll make the unit it
On Activation: UnitName SwitchMove "EffectStandSitDown"; Trig1=true
Make a nother trigger,
In its condition write: Trig1
In its countdown field put 2 in each,
On Activation: UnitName SwitchMove "OnChair"
Now, in your Init.sqs file, write:
Trig1=false
That's it.
Thanks to MacGuba for the trick.
Note: You can do this in a script, but it's not necessary.
UnitName SwitchMove "EffectStandSitDown"
~2
UnitName SwitchMove "OnChair"
Save above code as: Chiar
In a trigger write: This Exec "Chair.sqs"
Should be Chair X, as it's transparent, sort of.
Beware the GrimMonkey