Allow key re-binding

[ScienceGal8]

I cannot tell you how many times I opened split-screen mode today instead of undoing my last action, which was my intent. Something about my connection means that if I'm not hitting the Ctl+Z keys at the exact same time, it'll only send one through. I'm not sure whether that is a bug or not, but in either case, I'd love to be able to make the split-screen something else so it was less easily hit.

[steffest]

That makes totally sense and it is on the roadmap.
For now, I have mapped both "Z" and "Ctrl-Z" to undo (Split-Screen has moved to "N")
It will be included in the next release. If you can't wait, you can use the DEV version on https://www.stef.be/dpaint/dev/ where this is already updated.

Full adjustable keyboard shortcuts will be part of a future release.