Keyframing keyboard shortcuts in Motion

Add a point to the path

Double-click a path or Option-click a path

Create tangents on a point

Command-drag a Bezier point

Convert a point to linear

Command-click a Bezier point

Adjust a B-Spline point bias

Command-drag a B-Spline point

Switch a B-Spline point bias

Command-click a B-Spline point

Scale tangents proportionally

Command-drag a tangent handle

Break or relink a tangent handle

Option-drag a tangent handle

Constrain a tangent to 45 degrees and original value

Shift-drag a tangent handle