Okay, evidently the "Apply" button DOES do something!
Initially, I had inserted a "Back to Normal" at bar 17 for an instrument that had previously been muted.
That bar then had a "Back to Normal" set for the instrument and showed a red line under bar 17.
and the instrument played at bar 17 (as it should have).

Then... I deleted the "Back to Normal" at that bar...
And bar 17 stayed red and it didn't go back to being muted
(when played back by double clicking on a previous bar)

That is until I clicked on "Apply"...
Then the red line disappeared and the elimination of the "Back to Normal" took affect when played.
The APPLY button did APPLY for me. (SO MAYBE IT'S NOT REDUNDANT?)

F.Y.I.
Thanks.

Last edited by Thunderthud; 12/12/23 07:39 AM.