I'd like more clarity in the editor - which events belong to which groups, etc. Something like this:
[attachment=0:33lkr7mr][/attachment:33lkr7mr]
Scroll down to see it in action (also this annoying scrolling frame could be thrown out).
Also - random property values in the editor (basically just put random(a) or random(a,b) or choose(a,b,c) with values and at runtime it uses a random value).
And a Boolean global variable wouldn't hurt.