the way you can split objects into categories like in hiddenfeatures2:
they should be split up the same way in the object pane of the action window
so if I want to find sprite2 so I can double click and access a property, I can find it by category
also, that bottom pane where the objects are listed gets cumbersome if you have more than a few, and you have to scroll through it. it should be resizable, and it should remember the window size