Entering Trim Mode
Trim Mode button
Dual-Roller icon
To enter Trim mode, use one of the following methods:
  Press the Trim mode key ('[')on the keyboard.
  Click the Trim Mode button on the Tool palette or in the Timeline top toolbar. See Using the Tool Palette.
By default, the system enters Trim mode and selects the transition nearest the position indicator for dual-roller trimming. This method is useful for selecting straight-cut transitions on one track or across video and audio tracks. If the transitions are not straight cuts (overlap cuts or L-edits), the Dual-Roller icon appears on the transition nearest the position indicator of the topmost track, and all other tracks are deselected.
  Press the Alt key (Windows) or the Option key (Macintosh) and click the Trim Mode button to select the previous trim-roller configurations. By default, when you enter Trim mode, the trim rollers are set for dual- roller trimming. For more information about selected trim sides, see Selecting Trim Sides.
  Lasso the transitions in the Timeline.
Draw the lasso by clicking at a point above the top track in the Timeline and by dragging to surround the transitions. You can drag from right to left or from left to right, and you can lasso single transitions across several contiguous tracks.

  Avoid lassoing more than one transition on a single track when lassoing from left to right because this activates Segment mode and lassoing from right to left activates slipping trim mode.
This method is useful when you need to select multiple transitions staggered across tracks (overlap cuts) for simultaneous trimming.
  To select transitions located below several track layers, you can draw a lasso within the Timeline by pressing the Alt key (Windows) or the Option key (Macintosh) while you drag.
See Also
Marking Audio Clips
Using the Track Selector Panel

Some features described in Help are available only in Avid Xpress Pro or Avid Xpress DV. For more information about Avid Free DV go to
www.avid.com.