Hörmann 4511633 CTV 3-1 ~ code lock for 3 functions, particularly robust, with metal keyboard, up to two garage doors or electric door : Amazon.nl: DIY & Tools
Setting up and coding in a Hormann FCT3 Bisecur keypad - YouTube
FCT3B PIN Change - YouTube
Hormann Radio Code Switch FCT 3BS for up to 3 Operators