Just a very minor issue. I feel a bit stupid even pointing it out.
If I recall correctly, DII used TAB as the hotkey for the map, which is incredibly useful because your left hand tends to be in that area anyway. Currently the map defaults to M which I agree is handy to remember.
As a frequent map user I found it pretty annoying to have to move my hand to M to call the map. So I added TAB as a second key for map.
I would suggest to set this as default (both M and TAB), since there are precedents to use that key, and afaik TAB is not used for anything else yet.
I too have bound tab to Map. While I don’t doubt it’s fairly popular, I don’t think there’s much of a need to have many default 2nd bindings, otherwise people who want to set up custom binds need to put in more effort.