European Competitions

I just noticed that after I started my Career Mode with LAFC in the MLS League, then I transferred to Bayern Leverkusen, in the Bundesliga and under European Cup competitions, it shows OFF. I'm wondering if you need to play with the new European team for a whole season, and then you qualify for European Cup competitions, will that option turn ON? Or maybe you will have to choose a team in a league where continental competition exists in the game like in the Argentinean league. After you enable Cup competitions it goes with you to Europe leagues?