Adjust transitions in the Timeline

You can adjust a transition’s duration and move it in the Timeline. You can also trim either of the clips under the transition.

Change the transition duration

  1. Select a transition in the Timeline.

  2. Do one of the following:

    • Choose Modify > Change Duration (or press Control-D), type the duration (it appears in the Dashboard in the toolbar), and press Return.

    • Drag one end of the transition away from the transition’s center to make it longer or toward the center to shorten it.

      Edge of transition being dragged to change transition duration

The transition maintains its center point and equally trims both ends, with the number showing how many frames have been added to or subtracted from the transition duration.

Move the transition

Moving a transition actually rolls the edit under the transition, adding content to one underlying clip while removing content from the other clip. The overall duration of the project is not affected. Additionally, you can only move the transition as long as sufficient media handles are available for the clip that is being extended.

Transition being moved right in Timeline, rolling edit point under transition
  1. Select a transition in the Timeline.

  2. Drag the transition trim icon in the upper-center area of the transition.

    Center transition trim icon being dragged to roll edit point under transition

The edit under the transition is rolled, with one clip being extended and the other shortened. A number appears showing the number of frames to the left (negative numbers) or to the right (positive numbers) you have rolled the transition.

You can also use the Precision Editor to roll the transition.

Trim a clip under a transition

The transition includes icons that make it easy to trim the left or right clip without affecting the transition.

  1. Select a transition in the Timeline.

  2. Drag one of the trim icons in the upper-left or upper-right area of the transition.

    Left transition trim icon being dragged to trim start point of clip on right side of transition

Dragging the trim icon in the upper left adjusts the right clip’s start point, and dragging the trim icon in the upper right adjusts the left clip’s end point. A number appears showing how many frames you have added to (negative numbers) or subtracted from (positive numbers) the clip’s duration. Trimming the clip doesn’t affect the transition’s duration, but it does affect the project’s duration.

You can also use the Precision Editor to trim the clips under the transition.