Thanks so much! I'd ignored the critical step of making a slot active and think that will get me over the hump.
Glad you still have the user manual update on your list!
When will there be an updated user manual with screenshots, as promised for some time on this site. I'm certainly not a newbie to computer music, but am constantly frustrated with trying to relate the all-text manual to what I see onscreen. I'm also having a terrible time with the behavior of splits...