Registry: Dataset network membership curation: editor rights and scope

With more dataset networks coming in (and possibly more to be expected in the context of Hosted Portals in future), we would like to move from central, manual curation of network membership to being able to give editor rights to trusted network coordinators.

Network membership is curated in table dataset_network and links a network UUID with multiple dataset UUIDs, regardless of dataset publisher affiliation. Typically, a network brackets individual datasets across a range of publishers, and does not include all datasets of the publisher.

The desired functionality would ideally
1) grant a specific network coordinator permission to add more datasets to their own network / remove datasets from their own network
(NB: it is not necessarily possible to predict which publishers or even nodes these additional datasets may be affiliated with)
2) include a form of safeguard that reminds the editor that adding datasets to their network needs to be in agreement with the dataset owner
(networks are products of the self-organization of a community, built on mutual agreement)

As a minimum solution, and given the relatively manageable number of networks, it would help if we could 1) grant the network editor rights on the dataset_network content relating to their own network UUID (add/delete), and handle 2) in form of communication. Is 1) possible though? This would concern both the registry UI and API use.