Thank you! That answers my question perfectly.
EDIT: I want to add that I found, to make things easier, instead of using the "stop all sounds" function and having to restart specific things (remember, this toolbar is going to be on Runtime Frames Merging...), you can do this:
Under Audio for the "turn sound off" button (hotspot properties), select "change volume" for the channels you want affected, and set the volume to "0". Then, for the "turn sound on" button (hotspot properties), select "change volume" for the channels you want affected, and set the volume to the original volume.
This way, background sounds and music will still continue playing (thus, no restart each time the button is clicked), yet you can't hear them unless you click the "turn sound on" button on again.
Thanks again for showing me where all that was, and for walking me through the variables, jeeji1983. I'm slowly catching on.