Set default shortcut to "add brackets to element"
The first thing I do when I open musescore at school is always to set the "add brackets to element" shotcut to "(" in the preferences dialogue.
It does not interfere with any other functionality (as far as I know) and is really useful.
By the way, there's also a "add parentheses to element" which seems to do nothing. While "add brackets does the necessary job of adding courtesy accidentals (which to me are not brackets but parentheses, but anyway). So what is the other thing for?