Limeuhu12 Thanks for your help anyways. Very unfortunate that the good Advanced Search was apparently removed and replaced with this very vague “recommended”, 50 % more, twice thing. In addition to the “via” and custom minimum time, you could also choose “at least 10 minutes”, “20 minutes”, and “30 minutes” for the interchange in another option in the “Advanced Search”.
I can of course buy each leg separately but it’s more work and SBB charges more for the individual trains than all together in a single purchase.