Our current way of selectin diffs with (cur) and (last) is quite confusing and restrictive. Often when listing a page's history, I see a group of edits from a single user and would like to check the net effect of that group of edits, but the software doesn't let me do this.
Yes, I've already started working on this (using a two-column radiobutton view). It's complicated a bit by having a multi-page history. I'll post to the list as soon as it's finished.
Regards,
Erik