Allows you to rename a DWF underlay if the name is not unique.
DWFATTACH (Command) Find
The names of DWF or DWFx references you attach must be unique. Attempts to attach two DWF or DWFx references that have the same name displays the Substitute DWF Name dialog box.
New DWF Name
Enter a unique name for the DWF or DWFx underlay you are attempting to attach.
Once a new name is supplied, you can continue with the attachment process.
Note: This only changes the name of the DWF or DWFx reference when it is attached. It does not affect the name of the DWF or DWFx file.