Apple Logic Pro 8 - Manual (Page 41)

Chapter 2 Overview of the Logic Pro Interface 41
Getting to Know the Signature List
The Signature List shows all time and key signature events in the project. Score
symbols, if present in the score of the project, are also shown. These include: Repeat
signs and double bar lines (including end of score events), half/short bar lines, hidden
bar lines and manually inserted bar lines.
You can use the Signature List to create, copy, move, and delete time and key signature
events.
The initial time and key
signature of the project is
always displayed at the
top of the list, without
bar position indicators.