How many hand-held transmitters can be registered on the RolloPort S4? F. Tepaße Updated February 25, 2022 15:37 Follow Up to 6 handheld transmitters can be registered. Related articles When the hand-held transmitter is actuated, the lamp flashes briefly, but the drive does not move. How to set the endpoints on the RolloPort S4? How to register a handheld transmitter with the RolloPort S4? Is it possible to connect several external buttons to the RolloPort? Operating Instructions RolloPort RP-S4-550N