I have marked this thread as RESOLVED.

Part of my original problem stemmed from the fact that I thought the Edit Riffs button was supposed to be clicked (On).
But I don't think that was the whole problem.

My program was having a senior moment.

I also had a stuttering problem (the program, not me personally). That was resolved by eliminating the intrface and MySetup files.
That thread is here
https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=788954#Post788954

Thanks to everyone who chimed in on this. Very Much Appreciated.

If anyone else is still having problems with this, they might want to start a new thread.

fj