Good morning! I searched around for a bit but I couldn't find an answer to this topic. If I were to create a game however have another individual be the DM (as a Co-DM) would the table be able to use the resource books that I have purchased for various subclasses and variants from the other books (i.e. Unearthed Arcana, etc.) or would the co-GM who will be doing the GM work in the game need to have those resources?