Sharing Shared Content

I'm a new DM for a group of new players (what I'll call my Group Campaign), and I don't personally own a lot of digital content. I've been getting most of my non-basic sources from being a part of a campaign that has sharing a ton of source material as its main purpose (what I'll call my Content Sharing Campaign). I understand that if I subscribe to the Master-tier subscription, I can enable content sharing in any campaign I join that has content sharing turned on. My question is, can I share content that's being shared with me from the Content Sharing Campaign with the new players in my Group Campaign? 

No, content sharing doesn't work that way.

In a campaign with content sharing turned on, all the content that anyone in that campaign (both the DM and the players) owns will be shared with everyone else in that campaign. It won't be shared with other people in other campaigns those people are in.

I would add that as long as one person in the group has master tier, everyone’s stuff can be shared. So if you, the DM have a few books, and one of the players has another, and a third player has yet another, all the stuff will be shared with everyone. 

Got it. Thank you!