Character : Setting collision not on the capsule?

Hi,

My character can change form DRASTICALLY ! This means that the capsule is not working at all for certain meshes.
I tried disabling the capsule collision as much as possible (only WorldStatic can block my capsule) and I wanted to use the simple collision boxes from the meshes I use. But I can’t…
I saw here that only the capsule can serve as collision box, how can I change that ? C++ or blueprint I’m just looking for an answer.

Best regards,

rXp