I am very happy to see the box-editing feature (text changes applies to every line selected by the user) in the latest alpha version, but I think the functionality is not good enough. It’s better for the editor to stay in box-editing mode unless user press up or down cursor or escape key; that means backspace should delete one character, not all the whole changes made since box-editing began and ctrl-z should not cancel box-editing mode. The power column mode in Boxer text editor is really good (I think it’s better than ultraedit) and maybe you can take it as an example.
In Version 8.00 beta 1, Undo and Backspace will not cancel the Vertical Selection mode (box mode). Thanks!