Just came across this by accident yesterday and wasn’t sure if people were aware.
I’m sure most people know that you can hold the function button while on the mute page to select multiple tracks and mute/unmute them simultaneously when letting go of the function button.
However doing so makes you unable to do anything else on the rytm. While holding on to the function button you can’t switch pages or change parameters and by letting go of the function button you initiate the mute/unmute action.
Here the tempo button comes in as the surprising hero. While holding function and selecting the mute/unmute tracks (which go blue), press the tempo button once and then let go of the function button. The tracks that are cue’d up for mute/unmute will now keep glowing blue and you are free to navigate around the rytm again changing sound parameters or adjusting the scene.
Then when you go back to the mute page and you press the function button again it will actually execute the cue’d up mute/unmute action.
This enables some pretty neat performance opportunities not possible with regular muting/function-muting!