It's not really esential (I think) but it might nice to be able to resize the animator part of the side bar thing. Like so:
<img src="http://dl.getdropbox.com/u/1024727/images/windowslkz.png">
it would allow you to see all your animations at once!
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even with animations angles not expanded that might not be enough to see them all if you have a lot. maybe a shrunken view like objects bar sprite and stuff get so you can see them in smallest space would be useful.