In the Logic Remote Mixer, you can mute a track to silence its signal or solo a track to hear it by itself.
In Logic Remote, tap the Mute button to mute the track.
Tap the Solo button to solo the track.
To unmute or unsolo the track, tap the Mute or Solo button again.
In Logic Remote, tap the Reset Mute button to reset the mute state of all tracks.
Tap the Reset Solo button to reset the solo state of all tracks.