1. Perform one of the following actions:
   • To unassign pages from a page set, select the pages in the Page Sets pane of the Pages view.
   • To unassign pages from an imposition plan, select the pages in the Imposition Plans pane of the Signatures view.
     Tip: To select all of the positions in a page set or imposition plan at once, click the name of the page set or imposition plan.
            To select all of the positions in all page sets or imposition plans, from the Edit menu, select Select All Page Positions or right-click and select Select All Page Positions.
2. Perform one of the following actions:
   • Drag the selected pages and drop them onto the Pages pane.
   • From the Edit menu, select Unassign.