Hello
i have a similar problem. i started using stencyl and it looks amazing and promising.
here is what i'm trying to do (the behavior is on the player's avatar actor)

i have a list of gems called "game_gems"
when gems are over the player avatar i want to add them to "game_gems_overplayer"
then i want to change the gem actor animation from its default animation to "Highlighted" animation
i just dont know how i can get rid of that drop down box in my big boolean and in "switch animation to Highlighted for ...."
instead of created/colided/self/attribute i simply want to put "current item"!
no drag&dropping works.
in the previous solution Justin recommends to use "for each actor of type skeleton"
the way i'm trying to do the trick is not valid ? i have to use types (pink rectangle)?
thanks for your help