Hi @malasreda,
The menu items displayed depend on the components that you have enabled or disabled in BuddyPress options (in Settings >BuddyPress in the “Components” tab)
For example, if you disable the “Friend Connections” component, the “Friends” menu item will disappear. If you disable the “Activity Streams” component, then the “Activities” menu item will disappear, etc…
Other plugins can also add items in that menu. For example if you visit a member profile in our demo site, you will notice an “Articles” menu item. That one is added thanks to the Social Articles plugin (https://wordpress.org/plugins/social-articles/).
Finally, if you want to add custom items in that menu, maybe the following plugin can help you:
BuddyPress User Profile Tabs Creator Pro
However please note that this plugin is untested with Gwangi so we can’t guarantee that everything will work as expected, even though we believe there shouldn’t be any issues.
On the other hand, the small menu displayed under the avatar cannot be easily modified and depends only on BuddyPress.
Regards,