On the chat yesterday I was talking to a few people, and it seems there's some features which noone has used or maybe even discovered. In this set of threads, I'll explain some very handy features which could save you alot of time.
The first one is the image importer. Here's what it looks like:
You'll find this by right clicking the frames area of the Animator Bar, and selecting import images. (Excuse my lack of artistic flair.)
Clicking on it will open up a file selector (which is multiple select, so grab all the images you want). Now you'll see a list of them, and a bunch of options. Perhaps the most useful are the hotspot tool (allowing you to uniformly place hotspots on all your images), and the mirror/flip/rotate tools. The tile slicer will also serve a good purpose for rpg tilesets and sprite sheets. A good tip to mention at this point is that you can affect all images with these operations by shift clicking in the list, to select all the items. You can also reorder and import more images if you want using the buttons below the list.