Edit Modes and Tools : Grid Mode : Absolute and Relative Grid
 
Absolute and Relative Grid
Grid mode can be applied in Absolute or Relative mode:
In Absolute Grid mode, moving any clip snaps the clip start to Grid boundaries. If a clip’s start point falls between beats, and the Grid is set to 1/4 notes, dragging the clip will snap its start time to the nearest 1/4 note (the current absolute Grid value).
In Relative Grid mode, clips can be moved by Grid (or Nudge) units. If a clip’s start point falls between beats and the Grid is set to a 1/4 note (assuming the 1/4 note gets the beat), dragging the clip will be constrained to 1/4 notes, preserving the clip’s relative position to the nearest beat. For more information on Relative Grid mode, see “Sliding Clips in Grid Mode” on page 505.
To select Absolute or Relative Grid mode:
*Click the Grid mode selector and select Absolute or Relative.
*To temporarily suspend Grid mode and switch to Slip mode while dragging a clip, hold the Command key (Mac) or Control key (Windows) after clicking.