Hi all, I've just bought WB3 and I must say my first impression is that the game looks awesome. However, there are two things which really annoy me.

1) How do I change default keybinds? I've tried to edit keymap.txt but without results.

2) How do I install updates (Universal Update) from GOG? When I open the patch I'm getting "Game installation not found, please reinstall". I downloaded and installed the game via GOG Galaxy.

Well, I'm not 100% about your first question, but did you tried to make the .txt file 'read only'? It prevents it from overdriving, and maybe the game is doing so?
About the other - I think the Galaxy version is up to date, including everything. Those patches are mostly for folks with older versions, who didn't redownload. If the patcher doesn't see the it's usually that.

Thanks for suggestions I'll give them a shot :) Have a nice day.