I hit CTRL+F and searched for the question mark (?) .. it returned 15 instances.
Slow down!
You asked 15 questions in one post. <grin>

To zoom in/out I usually use the Audio Edit window .. allows more accurate view. Close it and you're back to the original track view..

To return to 1:1 in Windows, normally CTRL+0 returns the screen to native zoom ..

As far as RB respecting BiaB mute/return; normally I find it quicker to just edit the track(s) to suit in RB. I know the F5 key in BiaB has some pretty nifty features, but some simply do not work exactly the same in RB.

Understand that RB was not built as an extension to BiaB. It was originally a separate multi-track DAW/Sequencer that they added *some* BiaB features to (which makes it pretty amazing), but they are not the same. RB and PT are first/foremost a multi-track DAW with BiaB features thrown in later..

I do not work here, but the benefits are still awesome
Make your sound your own!