unfortunately the solution you have suggested does not work, so we can't go any further with this product and will look for another solution that allows us to comply with GDPR.

I'm looking at using Admidio as our membership management system, and for the most part it meets our requirements, except that any logged in user can see the entire list of users on the system. For data protection and our privacy policy, it is not permitted for all users to be able to see the names ...