// Add the Membership sub-navigation menu item to BuddyPress' Profile navigation array
add_action( 'bp_setup_nav', 'my_woo_info_nav' );
function my_woo_info_nav() {
global $bp;
$profile_link = trailingslashit( $bp->loggedin_user->domain . $bp->profile->slug );
bp_core_new_subnav_item( array( 'name' => __( 'Membership', 'buddypress' ), 'slug' => 'membership', 'parent_url' => $profile_link, 'parent_slug' => $bp->profile->slug, 'screen_function' => 'bp_woo_profile_subscription_screen', 'position' => 30, 'item_css_id' => 'membership' ) );
}
