CC Libraries team users

I am trying to edit the users of a company team that I have created that have access to the company libraries.

Basically when I (admin) create a new library I can assign a group that I have created to that library. This works like clockwork, no issues. However I ant to edit the users of that group but I cannot find out where to do that. I have spoken to Adobe support who just went round and round in circles and then clicked off the chat, twice, so it seems that they don't know how to do it either.

Anyone else know how to do this? I've checked user groups and it's not that. I've checked anythign to do with groups in the cc cloud library, assets library, main admin console etc etc. I just can't find where to make this change and it's frustrating the hell out of me!