In the postpress processing system the new RollSertDrum-M will be up and running for the first time. Compared with its smaller sisters, the inserting drum is equipped with a third feed for a preprint in addition to the connections for the main product and the FlyStream precollecting line. As a further new component, a transfer circulator links two independent UTR conveyors and enables the product stream to be assigned to two different processing steps during the conveying process. In the Haag printing centre, the transfer circulator is integrated into the line downstream from each inserting drum. Accordingly, it is possible to take either newspapers without inserts or finished products after they have passed through the RollSertDrum, and transport them directly to the winding process or bundling. In the specifications, such flexibility had equal ranking with the option to run inserting production in online and offline mode.