In reply to:
3. non-Latin characters like ä and å do not display properly in jEmplode, but they work fine on the empeg itself
They look okay in my JEmplode (v54, 2004-02-14) - I suspect your Java install is faulty. What do you see when you use these non-ASCII Latin characters? (From your examles, I see that "non-Latin" must be a typo/thinko - ä and å are in the "Latin-1 Supplement" block of Unicode)
In reply to:
7. Undo last action without reverting the whole empeg database.
Yes, yes! I'd like Mike to take his time and support multi-level do/undo/redo using the undoable Command pattern. (If he's feeling really nice, they could be logged to disk and, optionally, replayed after a JEmplode crash)