I'm working on a piece that has a guitar soloist. Using Hacking Rocking Blues style. I would like the soloist to play during the intro and other specific spots, but not throughout. How can I turn the soloist on and off throughout a song?

Firstly, Welcome to the forums.

Select the bar where you wish to Mute to Soloist, then press function key <F5>. You will be given a choice to mute the instrument/track at that bar. Select a further bar and choose "Back To Normal"