1. In the Keyframe Controller, click to position the cursor where you want to add a keyframe.

2. Click the Insert Keyframe button . A keyframe is added to the Keyframe Controller timeline.

   The new keyframe’s attributes are copied from the previous keyframe to allow you to make subtle changes without recreating all your settings.

To quickly add a keyframe, double-click on the Keyframe Controller timeline, or position the cursor on the timeline and modify your effect parameters.

1. Select a keyframe by clicking it.

2. Click the Delete Keyframe button .

• To jump to the next or previous keyframe, click the Previous Keyframe and Next Keyframe buttons (or press Ctrl+Left Arrow or Ctrl+Right Arrow).

• To jump to the first or last keyframe, click the First Keyframe or Last Keyframe button.

Right-click the keyframe and choose Copy from the shortcut menu. The keyframe and its settings are copied to the clipboard.

Hold the Ctrl key while dragging to copy a keyframe.

Keyframe animation can be used to smoothly and gradually modify an effect. For example, if you wanted to gradually fade an event to black and white, you could use the Black and White effect to create two keyframes. The first keyframe would use the Reset to None preset, and the second keyframe would use the 100% Black and White preset. During playback the event would start playing in color and gradually fade to black and white.

1. Add an effect to an event or track.

2. In the Keyframe Controller, click to position the cursor where you want the effect to start.

Select the Sync Cursor button to synchronize the cursor positions on the main timeline and Keyframe Controller timeline.

3. Click the Insert Keyframe button .

4. Adjust the effect attributes as desired.

5. In the Keyframe Controller, click to position the cursor where you want to add the next keyframe.

6. Repeat steps 3 through 5 to add a keyframe for each effect parameter change.

   During playback, the effect will smoothly transition through the attributes you established for each keyframe.

The interpolation curve determines the rate of animation between two keyframe settings. To change the interpolation curve, right-click a selected keyframe and choose a command from the shortcut menu. The curve type is updated for all selected keyframes.

After you’ve set your keyframes, you may need to adjust their positions along the timeline. Drag a keyframe to a new position in the Keyframe Controller timeline to change its position.

Hold Ctrl or Shift while clicking to select multiple keyframes. A selected keyframe is displayed as , and an unselected keyframe is displayed as a .

Hold Alt while dragging the first or last keyframe in a group of selected keyframes to adjust their spacing equally.

If you’re using video track effects or track motion, keyframes will be displayed in the timeline below your video track. You can drag keyframes to adjust their position, add and delete keyframes, and change the interpolation curve between keyframes.

Select the Lock Envelopes to Events button to lock track-level keyframes to the events on the track. When keyframes are locked, you can move events along the timeline, and their associated keyframes move with them.

Click the Expand/Collapse Track Keyframes button in the track header to toggle the height of the track keyframes. When expanded, a separate row is displayed for each keyframed item.

Event-level keyframes are not visible in the timeline.

Adding track keyframes

1. Click the Expand/Collapse Track Keyframes button .

2. Double-click to add a keyframe to the track view. The keyframe will use the same settings and interpolation curve as the previous keyframe.

Move track keyframes

Drag the keyframe to a new position in the timeline. If track keyframe rows are collapsed, overlapping keyframes will move together.

To move multiple keyframes, select the Envelope tool and create a time selection that includes the keyframes you want to move. When you drag, all keyframes in the time selection will move together.

Change the interpolation curve between keyframes

The interpolation curve determines the rate of temporal interpolation: the rate of motion between two keyframes. To change the interpolation curve, right-click a keyframe and choose a command from the shortcut menu:

If you want to adjust spatial interpolation—how motion occurs within a video image—change the Smoothness setting in the Event Pan/Crop or Track Motion dialog. A Smoothness setting of 0 produces linear motion from one keyframe to the next. Increasing the setting produces a curved path.

Edit track keyframes

Individual keyframe parameters cannot be adjusted in the track view. To edit a keyframe, open the effect’s property page.

1. Click the Expand/Collapse Track Keyframes button to expand track keyframe rows.

2. Double-click a keyframe to open its property page. For more information about using an effect, click here.