How to play a single part and hear all the instruments

Hi everyone,
I just downloadedMS4 and am loving it! The new sounds are fantastic!

One dumb question: is there a way to play an individual part, mute that part and also hear all the other instruments? this worked in MuseScore 3 and I used it often to create backing tracks.

I'm guessing this capability still exists in MS4 and I just haven't found it yet.

Thanks in advance!