To add listings to the group, you need to create a group first. Before continuing, make sure the "User Groups" component is activated in order to create groups. To enable it, go to WP Admin Dashboard → Settings → BuddyPress → Components and activate "User Groups". As soon as you activate the "User Groups" component you will see a new "Groups" menu item on the Dashboard.
While creating a group, make sure to check the option to have directory listings in the group in step 3. Listings.

To add listings, go to the group page and click on "Manage". Click the "Listings" menu and check the box that says 'Yes, I want this group to have directory listings.' Then search for listings you want to add to the group. You can add as many listings as you want and in the future, there will be more filters to ease the adding process.

Hit "Save Settings" and that's it! Group members can see all the assigned listings on the listings tab.

Last Updated: August 5th, 2021