Reverse the sequence of trims performed on a surface

Reverses any trims performed on a surface step-by-step, or all at once.

Set up the Untrim tool

The Untrim tool can either undo the trims performed on a surface one at a time, or undo all trims to the surface.

Choose Surface Edit > Trim > Untrim ❒.
To make the tool undo the last trim of a surface you click, set Untrim Stages to Last.
To make the tool undo all trims of a surface you click, set Untrim Stages to All.

Reverse trim operations performed on a surface