When you stop a recording, Screen Motion adds a zoom wherever you clicked. Each zoom starts just before the click, follows your pointer at 2×, and eases out after it.
Clicks close together share one zoom, so clicking through a form gives one smooth zoom instead of many jumps.

Redo them
Click Auto from Clicks in the Zoom settings, or choose Auto Zooms from Clicks in the command menu. This replaces every zoom with fresh ones from your clicks; undo brings yours back.
Remove them
Select a zoom and press ⌫. To remove them all, select and delete each one.
How they move
Screen animation in the Animations settings changes every zoom's motion: Focused settles quickly, Smooth glides more slowly. See Animations.