Championnat National 3 Puns

https://twitter.com/VHFootOfficiel/status/995007397717569536

Table here: https://www.fotmob.com/leagues/8970/table/

Any idea how to manage Championnat National 2 teams? The game allows me to load teams from Championnat National 2 and above, but I cannot take control of them. The competition is greyed out in the "Choose team to manage" dropdown menu and if I try to access teams through the in-game "globe" menu, the "Take control" button is missing from these teams. I have the same problem regardless of whether any editor files are enabled or disabled. Does this require downloading another database with the league enabled? I don't think non-playable leagues in any other country can be selected when starting a save.

e: the problem seems to be that Championnat National 2 is only a parent competition for the four groups and the promotion/relegation to/from National 1 happens with the parent competition instead of the groups. Trying to work around this in the editor.