Creates multiple selected layouts from sheets contained in DWF underlays.
Keyboard Command: LyoFrmUnd

Procedure:
- Choose the button and select the underlay file to process.
- Select the source layout from the popdown list.
- Designate additional parameters as desired.
- Optionally turn off selected sheets in the grid and/or change the name.
- Choose the button to begin processing.
Notes:
- The designates source layout will be copied to create the container for the underlay placement.