Object and Layer Selection In Motion
In order to transform a layer or object, you have to first select the element you wish to transform within the canvas, layers tab, or timeline. Objects selected within the canvas will be enveloped by what is called a bounding box with adjustment handles that allow for the transformation of each selected object.

Selecting a single object within the canvas:
- Click on the desired object in canvas.
Selecting multiple objects and adding objects to a selection group:
- Drag a bounding box to encompass all objects you wish to select.
- Use Shift or Command and click all objects you wish to select.
- Use Shift or Command and drag a bounding box over objects you wish to add to a selection group.
Check out this info that discusses various hardware configurations and their performance with Motion.
