Selecting the Edit Shape tool activates canvas controls for adjusting simple shapes and masks.
Selecting the Edit Points tool activates control points in the canvas for adjusting complex shapes and masks.
Note: Onscreen control points are not available for layers within a 360° environment. (You cannot add shapes or masks to a 360° environment).
In Motion, after you create the simple shape or mask, click and hold the transform tools pop-up menu in the canvas toolbar, then choose Edit Rectangle or Edit Ellipse.
The shape or mask layer’s onscreen control points become active.
In the canvas, drag the control points to modify the shape of the layer.