Ok so, now it appears that when i select another country (US) the extra 5Ghz channel options become available.
Rebooted and selected Country NL again. Channel options dissapear.
However, It seems to have kept the right channels on 5Ghz, so also DFS channels. I checked by going to Accespoints -> Edit -> Radio A/N/AC/5Ghz. All 5Ghz channels available, DFS and Non-DFS. Even after reboot.