Apple Logic Pro X - Manual (Page 565)

Chapter 19 Make global changes to a project 565
Protect the position of selected markers
There are times when you may want to protect markers from being moved. Logic Pro has a
feature that preserves the absolute time position of events.
m Choose Options > Lock SMPTE Position in the Marker List (or use the corresponding key
command).
This command locks (fixes) the time position of markers, and a lock symbol is displayed at the
beginning of the marker name.
These markers always retain their absolute time position: if the project tempo is changed, the bar
positions will change to keep the markers at the same time positions.
Tip: You can also lock and unlock the time positions of markers from the Region menu in the
Tracks area, and the Functions menu in the Piano Roll Editor and Step Editor, if you turn on the
display of global tracks.
Unprotect the position of selected markers
m Choose Options > Unlock SMPTE Position in the Marker List (or use the corresponding key
command).
Note: You cannot unlock the time position of scene markers. See Use movie scene markers on
page 834.