Apply y-offset consistently for graphics, this may break some existing graphics such as fingerings
Allow re-positioning of graphics in display using control-shift drag
Keep lollipops on the staff and move them into the Denemo directive area
Give help for control-shift click
Make score dirty after altering the display
Draw bar numbers at start of bar and paler so it is obvious which bar they belong to, and yet they won't obscure notes they collide with