FRED is a text editor at heart...
Honestly, even notepad manages an undo >.>
The Events editor is so primitive its laughable. honestly I would prefer it be a notepad-like editor with parsing than the current drop-down list nightmare. In fact, that would probably increase my FREDding speed by tenfold seeing as I memorized all the SEXPs I use anyway, and if I could just
type them in I wouldn't also need to memorize which sublocation they're under.
With that you can also actually copy between missions etc.
Sounds like a pipe dream though

Dammit, I'll just FRED in Notepad. **** the visual aids, they're all absolutely useless anyway except for placing ships and backgrounds >.>