How to force specifique fillament for support?

i am trying to use PLA support filament, but i don’t see any option in the studio to force the material for support to be that one.

i have been looking everywhere in the option, but the h2d juste use normal PLA for support, so why won’t it use it ?

then i found this post

is it mentionned anywhere that pla support material has to be in a AMS for it to print ? i am confused

never mind, i finaly found it