UNDOCTL

Retains the bit-code value for the UNDO command. This is represented by the sum of the following values: 0=UNDO is off, 1=UNDO is on, 2=UNDO affects only one command, 4=activates the Auto option, 8=a group of actions is currently active for UNDO, 16=UNDO recognizes zoom and pan as a group to undo, 32=UNDO recognizes the specification of layer properties as a group to undo.

Type:     Integer

Saved:     Temporarily during the session

Range:     Greater than 0

Default:     53