What setting can I do in Fold Page Control Panel ?   Fold Setting

Click Saddle Stitching Binding button first, follows by Fold Page Control Panel icon.

Let璽?砂s say your Saddle Stitching Binding could not fold 12 pages, then click on 12 Pages Tab first.

De-select the Fold Pages you binding equipment could not operate on. Once you are done, click Save.