A number of circulatory elements arranged one behind the other are driven in a direction of circulation and have a suction element and a supporting element in each case on the first side and on the second side. The circulatory elements receive a supplementary product at the pick-up location and transfer the same, in a first mode of operation, to the respectively preceding circulatory element. In a second mode of operation, no transfer takes place. This results in it being possible for the supplementary products received in the same manner to be brought into abutment optionally against the leading side or trailing side of the printed products and pressed on there.