Hello,
as far as I know, You can regulate it only by the sites dedicated to the communities. If You create the community, then You can then assign the permissions to the community. Between theese rights are the rights "manage pages" and "Administrate". I do not know if You want both to add the content to the community page or only the "manage pages", but at least You do not have to assign to the users the "big Administrator" role...
I do not have any idea how to make it by the sites dedicated to the Power Users, Organizations and Locations - The access rights for it are not visible there, I do not know why...
with best regards
Archie
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