Im sorry but my knowledge of German is too bad, so I will try to write English.
I try to build the project contains three parts. Earlier I did separate parts in separate project folders and in next one I make a connection (contact active). But I can't set separate materials for the each part separately. The possibility is to use one material for all parts or nothing. In section Picking / select elements I have three sets but they are not visible in section material database / material sets. What am I doing wrong? Is it possible to do that? And another question. How, if I have three parts, set contact settings more then one active? Between 1 and 2 and next 2 and 3 parts.
Thanks for attention, and Im waiting for answer.