Naema
besides having some way to 'preview' an item before you click on it, (which is easy enough to delete it once you make it appear), It would be awefully nice to have a way to delete an item by right-clicking on it later. There is features to edit, or 'Move, rotate, and scale,' but if there was a delete button also, it would make life so much easier rather than having to find the item in the box of spawned items which may be a lengthy list, plus, you might delete the wrong item there. :(
Also, maybe an 'Undo' button which undos things one at a time?
+1 for all of your ideas :)
To identify a shape in the scenes list, first save and then modify the collision slightly or move z of the shape with right click menu, the edited shape will be red in the list, instead of beige till the next save.
It would be great if we could mark shapes in some way, at least 2 kinds of marks, one for broken shapes and one for favorite shapes.
It would also be nice, if we could see other users markings (ratings, tags).
How would it be if users could contribute preview images to shapes? All you would need to do is give us the ability. ;)