I've done a staff type change (from bass clef marimba to sus. cym staff) to insert a 2-measure sus. cym. roll.  When I hit the midi key i(G5) t displays the note way above the new 3-line staff.  I was wondering if there is any way to fix this, given that it's bass clef and not treble, which is more typical.

Bill is the man!!!

Yep.

OT - Did Bill know that from memory?

You could put in a clef change and hide the clef so it would not appear that there is a clef change, then change back to bass clef and hide that one as well... if it's aesthetics you're worried about :-)

It's G6.  Remember, in the manual it all starts on C1.