Permissions and Filtering on a dataset?

Thanks amitchandak, I'm looking at that now but it brought up another question. So I create a project RLS group for that specific project but the intent is to provide that to the project PBI admin so they can build reports off it for their own end users (project specific).

The question is, will those end users on that project inheret the same RLS of the data that I've given to the project admin or will the report be blank until they are directly added to the main dataset RLS project group? If they DO have to be added directly, is there a more dynamic way to automatically add them based on who has access to that projects report so that I don't have to continually add people to the RLS?

I know I could create a security group but the project report is already up and running and has users with direct access to it, I'm just going to provide them with more datasets to use and I don't want to back track everything that's setup. Ideally I'm thinking it would be great to be able to say ok, whoever has access to this "report" will be put into this RLS project group by association.