The invention relates to an arrangement of sheet-holding systems at storage drums in turning devices of sheet-fed printing machines. In accordance with one embodiment, a method is provided that collects feedback from the user at a centralized computer system. The structural member defines a vehicle exterior-side wall section and a passenger compartment-side wall section. The metadata generation circuitry may generate metadata for a current image block and provide the generated metadata to the image data output control circuitry. Those users having the proper privilege level may be given a cryptographic key to allow decryption of the supplemental content. A spring has its outer end mounted in the sleeve groove, and an inner end captured in a die pocket in a pretensed condition.