I'd like to be able to see a list of available undos, like Photoshop's "History" feature.
Currently, say I delete something by mistake, then do some more work, then notice I've made an error, it's hard to undo it because every time I type command-z i just get a message like "undo delete", but pretty much all my actions are deletes, and it's really hard to tell which one is the right one.
So, with that in mind, each entry in the history list should contain some context, ie, "Deleted '[deleted text]'.
It would also be good to see whether a history state was from the Editing media or Correcting text mode