Apple Logic Pro 9 - Manual (Page 154)

3 Choose settings in the Font window.
Editing Markers
Markers can be edited in various ways. Common tasks include changing marker positions,
coloring markers, and adjusting marker lengths.
To change the position of a marker
Do one of the following:
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In the Marker track: Drag it to the left or right.
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In the Bar ruler: Command-drag the marker to the left or right.
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In the Marker List: Use the mouse as a slider on the bar Position display, or double-click
a position value and enter the new value with the computer keyboard.
Note: The smallest movements that can be achieved in the Marker track and Bar ruler
depend on the division setting in Transport area, the Snap menu setting, and the horizontal
zoom level (including sample-accurate placement at the highest zoom levels). Watch the
help tag for precise feedback on movements. The alternative for fine position adjustments
is the Marker List.
There are times when you will want to protect markers from being moved. Logic Pro has
a feature that preserves the absolute time position of events.
To protect the position of selected markers
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Choose Options > Lock SMPTE Position in the Marker List (or use the corresponding key
command).
154 Chapter 6 Working with Markers