public function setup_nav( $main_nav = array(), $sub_nav = array() ) {

		// Stop if there is no user displayed or logged in
		if ( ! is_user_logged_in() && !bp_displayed_user_id() ) {
			return;
		}

		// Define local variable(s)
		$user_domain = '';

		// Add 'Forums' to the main navigation
		$main_nav = array(
			'name'                => esc_html__( 'Forums', 'bbpress' ),
			'slug'                => $this->slug,
			'position'            => 80,
			'screen_function'     => 'bbp_member_forums_screen_topics',
			'default_subnav_slug' => bbp_get_topic_archive_slug(),
			'item_css_id'         => $this->id
		);

		// Determine user to use
		if ( bp_displayed_user_id() ) {
			$user_domain = bp_displayed_user_domain();
		} elseif ( bp_loggedin_user_domain() ) {
			$user_domain = bp_loggedin_user_domain();
		} else {
			return;
		}

		// User link
		$forums_link = trailingslashit( $user_domain . $this->slug );

		// Topics started
		$sub_nav[] = array(
			'name'            => esc_html__( 'Topics Started', 'bbpress' ),
			'slug'            => bbp_get_topic_archive_slug(),
			'parent_url'      => $forums_link,
			'parent_slug'     => $this->slug,
			'screen_function' => 'bbp_member_forums_screen_topics',
			'position'        => 20,
			'item_css_id'     => 'topics'
		);

		// Replies to topics
		$sub_nav[] = array(
			'name'            => esc_html__( 'Replies Created', 'bbpress' ),
			'slug'            => bbp_get_reply_archive_slug(),
			'parent_url'      => $forums_link,
			'parent_slug'     => $this->slug,
			'screen_function' => 'bbp_member_forums_screen_replies',
			'position'        => 40,
			'item_css_id'     => 'replies'
		);

		// Engagements
		if ( bbp_is_engagements_active() ) {
			$sub_nav[] = array(
				'name'            => esc_html__( 'Engagements', 'bbpress' ),
				'slug'            => bbp_get_user_engagements_slug(),
				'parent_url'      => $forums_link,
				'parent_slug'     => $this->slug,
				'screen_function' => 'bbp_member_forums_screen_engagements',
				'position'        => 60,
				'item_css_id'     => 'engagements'
			);
		}

		// Favorite topics
		if ( bbp_is_favorites_active() ){
			$sub_nav[] = array(
				'name'            => esc_html__( 'Favorites', 'bbpress' ),
				'slug'            => bbp_get_user_favorites_slug(),
				'parent_url'      => $forums_link,
				'parent_slug'     => $this->slug,
				'screen_function' => 'bbp_member_forums_screen_favorites',
				'position'        => 80,
				'item_css_id'     => 'favorites'
			);
		}

		// Subscribed topics (my profile only)
		if ( bp_is_my_profile() && bbp_is_subscriptions_active() ) {
			$sub_nav[] = array(
				'name'            => esc_html__( 'Subscriptions', 'bbpress' ),
				'slug'            => bbp_get_user_subscriptions_slug(),
				'parent_url'      => $forums_link,
				'parent_slug'     => $this->slug,
				'screen_function' => 'bbp_member_forums_screen_subscriptions',
				'position'        => 100,
				'item_css_id'     => 'subscriptions'
			);
		}

		parent::setup_nav( $main_nav, $sub_nav );
	}