BuddyPress - add a sub_nav item to profile tab

gistfile1.txt

function bpfr_custom_profile_sub_nav() {
	global $bp;
	$parent_slug = 'profile';
		
	//Add subnav item 	 
	bp_core_new_subnav_item( array( 
	'name'            => __( 'Create a Group', 'buddypress' ),
	'slug'            => $parent_slug, 
	'parent_url'      => $bp->loggedin_user->domain . $parent_slug.'/', 
	'parent_slug'     => $parent_slug, 
	'screen_function' => 'groups_screen_my_groups',
	'position'        => 60,
	'link'  => trailingslashit( bp_get_root_domain() ) . trailingslashit( bp_get_groups_root_slug() ) . trailingslashit( 'create' ),
	) ); 
}
add_action( 'bp_setup_nav', 'bpfr_custom_profile_sub_nav' );