This post shares how it is possible to hide group activity on the main activity feed. Some easy method to do your activity:
Activating User Wall Posting on BuddyPress
Go to Settings > BuddyPress > Components.
Make sure both “Friend Connections” and “Activity Streams” are enabled.
Go to the Settings > BuddyBoss Wall menu in your Dashboard.
Configure the options as required for your site.
You should now be able to go any user’s profile and write on his or her Wall.
