OK, Why are there utility tracks when the chord window or the 'Current bar' setting editor can't mute them?

The ONLY tracks that can be muted are the default 5 instrument tracks as well as the melody, soloist and audio tracks using the current bar editor (F5).

I tried using the '_REBEL.STY' style and it uses utility #1 for it's solo guitar, but I can't do anything with it either via the chord sheet or the (F5) function. So my question is, why have the utility tracks if they can't be controlled either via the chord sheet or (F5)?

What I want to do is to mute everything on bar 1 (for a 2 bar intro) except the solo for an intro, then on bar 2 have the drums and the solo playing leading into the start of the song where all tracks, except the solo is playing, unfortunately, this wasn't thought out when those utility tracks were included.