I have already understood the division of the views in the FM3 / FC6 / FC12. Out of interest, I wanted to know if there are technical reasons for a "restriction". It's also possible that FAS hasn't thought about this yet, which is absolutely fine. I get along fine with the 9 switches.
The FM9 has a second view for information. In the second view, however, the missing 3 switches from view 1 can be assigned.