No, simultaneous use is not possible: it is possible to memorise fixed-code OR rolling-code remote controls. the first one memorised determines the type accepted by the receiver, until a possible memory reset. An exception is the HALO automation, which only accepts rolling code remote controls.

Press and hold the button on the receiver (in the case of a plug-in or universal clamp receiver) or the radio button on the control unit (in the case of an integrated receiver) for about 3 seconds until the LED lights up, then release it. Within 7 seconds, press the button you want to delete on the radio control until the LED on the receiver goes out and then starts flashing. Confirm the deletion by briefly pressing the button on the receiver: if the LED returns 1 long flash, the deletion is successful.