Is there a way to put a box around a metroname mark, like this?
Don’t think so.
I am having trouble thinking of a way to do it. Unless fake it with text and hide the MM behind it. Seems a lot of fuss for something ostensibly simple (I know, nothing is simple!).
Yes, doing it with a system-attached text item with a border applied is probably straightforward enough, but you will need to hide the real metronome mark via Properties.
@Norfonts, please read the OP and title. Box, not parentheses. Sorry that may have been misleading. In the image the parentheses are incidental. I should have posted an example without.
Oppps, my mistake… sorry.
Create a new Default Text with Border checked:
Hit space-bar to fill in the empty box, use Engrave mode to position the box around your metronome mark.
Or use Metrico as shift-X text and put a box around that and hide the real metronome marking.