1) Indeed, didn't see that... Thanks !
2) Yes, square brackets don't work for me, and it's only in MB. I've tried on my two PCs. In one, just the minimal stuff installed, so I don't think this could be a conflict with another program. I've tried to look at the shortcuts in the preferences to see if it could be a conflict, but nothing clear. In fact, right square bracket works in the fields in the Preferences, the left bracket doesn't work anywhere in MB
A conflit with the french keyboard ?