Apple Motion 5.1.1 - Manual (Page 267)

Chapter 8 Timeline 267
Add a layer to a group
1 Drag an item from the File Browser, Library, or Media list, then position the pointer over the
Timeline layers list.
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If you position the pointer over a group, the track is highlighted with a white border.
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If you position the pointer between layers in a group, the position indicator appears.
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If you position the pointer over an existing layer, the pointer becomes a curved arrow,
indicating that you are about to replace the existing layer with the new media item.
2 Release the mouse button to add the layer to the group.
The new layer is placed in the group below the other layers in the list, or between the
layers where you dragged it. If you dragged onto an existing layer, a new layer replaces the
previous one.
Note: If the media item is a clip with multiple audio tracks, a drop menu will appear, allowing
you to choose between mixing down the multiple tracks to stereo or importing audio
tracks individually.
Create a new group on top of existing groups
1 Drag an item from the File Browser, Library, or Media list into the Timeline layers list, at the upper
edge of the top group.
2 When the position indicator appears, release the mouse button.
A new group is created above other existing groups in the hierarchy or “stack” of groups
and layers.
Create a group above existing groups
1 Drag an item from the File Browser, Library, or Media list into the Timeline layers list, below the
lower edge of the bottom layer.
2 Release the mouse button.
A new group is created above the other existing groups in the hierarchy or “stack” of groups
and layers.
Edit objects in the Timeline
Edit objects in the Timeline overview
During the process of designing and implementing a motion graphics project, you place
objects in the Timeline and Canvas, move them forward or backward in time, and trim them to
correspond with the timing of other objects in your project.
Motion has several features that help you modify objects in the Timeline. You can arrange your
objects to begin and end at designated frames. You can also use powerful alignment and timing
tools, such as snapping and markers. You can retime objects, forcing them to play at faster or
slower speeds. You can also modify keyframes in the Timeline. This section describes the various
ways you can perform these actions.
Motion uses the terms move, trim, and slip to describe the different ways of editing Timeline objects:
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Move: Changes the location of an object without affecting its content or duration.
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Trim: Changes the duration of an object without affecting its location or content.
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Slip: Changes the content of an object without affecting its location or duration.
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