Surround : Surround Panning and Mixing : Introduction to Pro Tools Surround Panning : Mix and Edit Window Panner Grids

Mix and Edit Window Panner Grids
In the Mix and Edit window, multichannel Panner Grids are displayed on tracks that have multichannel track or send output assignments.
To pan from the Mix or Edit window:
1 To pan in the Edit window, make sure I/O View is being shown (View > Edit Window > I/O). Panner Grids are always displayed in Mix window tracks that support panning.
2 Begin playback.
3 Drag in the appropriate multichannel track’s Panner Grid in the Mix or Edit windows.
 
The Pan Location cursor follows your movements as long as you hold the mouse button. Movements are scaled so that, once you click to “grab” the Pan Location cursor, you do not need to limit your movements to the small Track Grid area.
Pan Location Cursor Color while Automating
The Pan Location cursor is green when the track is in Automation Read mode, red in an Automation Touch, Latch, Touch/Latch, or Write modes, and yellow in Automation Off (or Automation Suspend) mode.
In Trim mode, the Volume fader and LFE fader are yellow.
Output windows provide additional features and controls (and a much larger Grid). For details, see Output Windows.