Tools menu
The tools button accessible with 
or <shift-F10> on the button bar brings op a menu with several tools:
- add text block (final text, lyrics)
- add a section
- insert an explicit bar number change
- insert a picture
- insert a chord symbol using the chord wizard
- insert a chord diagram
- insert a midi-program-change
- insert a midi-control-change
- insert an accordion register symbol
