The owner of a chat room or its moderators can change the chat room’s moderators.
Load the ChatTools`package
Load the ChatTools` package for access to functions for managing chat room moderators:

Specify a chat room’s moderators
Get a list of a chat room’s moderators:

Replace all moderators except the chat room owner, documentation@wolfram.com:

Verify the change:

- The owner of a chat room cannot be removed from the moderator list.