Undo

The Undo option undoes the last operation. For a few operations like smoothing, refinement, coarsening, conversion, etc., where the whole mesh is changing, only one Undo operation is possible.

Note: Operations related to display cannot typically be undone.

Note: When using Undo for blocking operations, the index control may be affected because the active state of the index control may be modified by the Undo operation.