add event: system: For loop
from 0 - 100
subevent Mouse Keyboard: On Key Released,
instead of choosing a key, right click just above where you would choose a key
and click use expression
for the expression type in "loopindex"
<img src="http://files.getdropbox.com/u/1013446/New%20folder%20%282%29/Capture4.PNG">
and there's already an "on any key pressed" one
but I think that's what you meant