Factorio Forums

Hello,
I looking for information how to connect my gog account with factorio account, or at least how to get posibility to play multiplayer game from my GOG version.
Is there any posible way, or should I give back factorio at GOG at buy it through steam ?
I saw one post when someone show screen with CD-Key on gog which i could write into Membership upgrade field at factorio setttings, but i can't find this CD-key at GOG like he did.

See: viewtopic.php?f=49&t=40428

This is topic which i mentioned above. But it doesn't matter right now because meanwhile i found that this was screen from website, not gog client (who could know that there will diferenes, right ? ). Anyway, thx for help.