How many hand-held transmitters can be registered to the RolloPort? F. Tepaße Updated December 21, 2021 07:11 Follow Up to 15 handheld transmitters can be registered. Related articles Operating instructions RolloPort SX5 RP-SX5-900N-3 Operating Instructions RolloPort S2 RP-S2-700N What do the different symbols in the display mean? F, H, L, A, rotating zero. Instruction manual Rator 4300/4310 Is it possible to connect several external buttons to the RolloPort?