BuddyPress groups content control

I have set up BuddyPress groups, some I want for free subscribers, but others are to be available to paying subscribers only.

How do I achieve this?

How do I control who can see the groups, I can set the to public or private via buddypress options but I can’t find it anywhere in the content protection area of the membership plugin.

I have the shortcodes but I’m at a loss at what to do with them.

This is a fabulous plugin btw, it’s a challenge to set up but I’m getting there…

Jane.