To Create a Custom Print Definition Name Expression for a Print Set

In the Print Organizer dialog (File > Print > Print Organizer), select File > Default Print Definition Name.
The Default Print Definition Name Expression dialog opens.
Select a predefined expression that is similar to the one you want to create.
The content of the expression is shown in the dialog's read-only Expression field.
From the Expression name list, select Custom.
Make the necessary modifications.
(Optional) To preview the expression, click Preview Names.
The Print Definition Names dialog opens to display the new print definition name(s), if you have files in the active Print Organizer session.
Click OK.
The Default Print Definition Name Expression dialog closes.