Apple Logic Pro 9 - Manual (Page 886)

Page and Line Break Symbols in the Part Box
Break symbols (and No Line Break and No Page Break objects) can be inserted as events.
Once inserted, they cannot be moved automatically (when you alter the Layout project
settings, resize the window, and so on).
You can overrule the Line Break, Page Break, No Line Break, and No Page Break events
with the Layout tool.
Line breaks and individual staff margins can be determined for each score set, and also
for each of the extracted parts.
Chord Grid and Tablature Symbols in the Part Box
Chord grid symbols (available in three different sizes) and tablature markings are used
for guitar notation. The Part box provides access to these symbols and markings to use
in your score.
For full details, see Working with Chord Grids and Working with Tablature Markings .
886 Chapter 31 Working with Notation