request DB

I wanted to try a save with the alternative reality that the super league is on.

but i couldn't make the db because I tried to make the super league in the editor but I couldn't keep the teams in their own league. Is it possible to make a European competition in the editor and with that keep the teams in their leagues?

i just like to make a close European tornenament, keep the teams in their league and keep them out from the champions league/Europe league

That should be possible if there is a way to make 'legacy' teams that are gauranteed a yearly spot in a given tournament, so all you'd need to do is basically "clone" the Champs and enstate the set SL spots for the said teams.
Also, try looking at how the MLS format works in the editor.