Apple Motion 5.1.1 - Manual (Page 279)

Chapter 8 Timeline 279
Note: After you manually change the length of the upper group bar, it is no longer updated
when you add or modify the objects to the group. To restore automatic updating, realign the
edges of the upper group bar with the edges of the first and last clips in the group.
Trim an image or video object without trimming its applied effects
You can use the technique described in the task above on image and video objects, trimming
them without affecting the duration of their subobjects (masks, filters, or other applied effects
objects).
m Press Command while you drag the edge of the image or video clip.
The object is trimmed independently of its applied effects objects.
Slip a video layer via the group track
m Holding down the Option key, drag an area in the lower group bar where the video layer
is located.
If there are overlapping (composited) layers, before performing this operation Control-click the
overlapping region, then choose the video layer from the shortcut menu.
Note: You can only slip an object if there are unused frames in the source media associated with
that clip. For more information on slipping, see
Slip video layers on page 271.
Dragging right slips the video clip to an earlier portion of the source media. Dragging left slips
the video clip to a later portion of the source media. Either way, the position of the clip in the
Timeline and its duration are unchanged.
Display and modify keyframes in the Timeline
You can move or delete keyframes that are displayed in the Timeline. You can also display the
animation curve for a selected keyframe, using the Keyframe Editor.
Display keyframes in the Timeline
m In the upper-right corner of the Timeline, click the Show/Hide Keyframes button.
Show/Hide
Keyframes button
When the Show/Hide Keyframes button turns blue, keyframes appear below the objects in the
track area.
67% resize factor