is there a way to set up a GUI button or (if I must) a keystroke to mark a message as junk?
See Special menu: Mark as (NOT) Junk. You can assign a hotkey (ALT-F12), but a GUI button is not possible yet. A customizable toolbar might appear in the next release, if we're lucky.
Ah. Understood. It is now set here as basic F12. I'll be happy when customizable toolbars are available, but F12 is good and easy.
I am now officially very very impressed with Bayes Filter Plugin, by the way. I have got it working nice and reliably with all four of the accounts in use here. I really, really, really like being able to train my Bayeser using my Trashes, Sents, and Inboxes!
-- Jonathan E. Brickman http://joshuacorps.org