Creo AFK custom parts/equipments etc

Hey I really struggle to understand how can we custom AFX library. I’ve manange to add few simple profile (from NORCAN library) by duplicating existing profile in afk and changing the section. It “worked” in the framekwork assembly module.
Nevertheless, in the draw name, size, type and length are completly out of sense regarding the added profile. Moreover, even though I can create simple join and it works well, some other are broken (cf screenshot).

I don’t know by the way how we can create profile from scratch.