Add increase/decrease tab indent buttons to the editor toolbar
If you have some code which is heavy nested and you just copy some of the inner code you end up with a lot of useless space (if you don't have box-selection or don't know how to use it at least).
So wouldn't it be convenient if the "greatest common whitespace" in pasted text would be removed from each line automatically? Or if that is not going to happen how about two buttons which add/remove 4 spaces to/from all selected lines?
(Edit: I know you can use the normal code block button to shift code back but not all people do, and having a right shifting button would be nice for fixing code-internal indentation problems or if you paste a segment into the existing code and you want to line it up properly)