brundlefly
CraigG58
Unless I'm missing something, I've found an even simpler way to accomplish this.
I never noticed the "Mute" and "Erase" tools before. To mute:
- Enter track view.
- Press F10 to toggle Mute or Erase in the tools module (for my purposes, Mute).
- Starting in the lower half of the top track, left click and drag down to select the area you want to mute. When you release, mute displays small dots above each waveform to indicate where the muting begins and ends.
- That's it!
Given you felt putting an automation envleope on the Master bus was too much work, I didn't think you would want have to region-mute every clip individually. 
Personally I think either bus automation or splitting and clip-muting are easier and more easily undone/redone, but glad to hear you got it figured in any case.
It's not that I thought it was too much work, and I do use automation for various things quite a bit. Nothing had to be done individually, it was all in one shot using the three steps above, and took about 10 seconds. Hey, everything's easy when you know how to do it, right?
In the case of what I needed to do today, it was just easier to use the tools I linked because it only needed to be done once for a very short period, across all tracks. Another instance I can see myself using these tools would be for short sections of tracks that might contain various instances of noise, for example microphone pops. For spot fixes like that, I think mute will be very convenient.
Anyway, for the purposes of what I was doing today, I think using automation envelopes would have been overkill. But, I will definitely keep the techniques you outlined in mind for future reference during other, more complex tasks.
Thanks again!