includes/class-freemius.php
function _add_default_submenu_items() {
            if ( ! $this->is_on() ) {
                return;
            }

            if ( ! $this->is_activation_mode() &&
                 ( ( $this->_is_network_active && fs_is_network_admin() ) ||
                   ( ! $this->_is_network_active && is_admin() ) )
            ) {
                $this->add_submenu_link_item(
                    $this->apply_filters( 'support_forum_submenu', $this->get_text_inline( 'Support Forum', 'support-forum' ) ),
                    $this->get_support_forum_url(),
                    'wp-support-forum',
                    null,
                    50,
                    $this->is_submenu_item_visible( 'support' )
                );
            }
        }
function _add_default_submenu_items() {
            if ( ! $this->is_on() ) {
                return;
            }

            if ( ! $this->is_activation_mode() &&
                 ( ( $this->_is_network_active && fs_is_network_admin() ) ||
                   ( ! $this->_is_network_active && is_admin() ) )
            ) {
                $this->add_submenu_link_item(
                    $this->apply_filters( 'support_forum_submenu', $this->get_text_inline( 'Support Forum', 'support-forum' ) ),
                    $this->get_support_forum_url(),
                    'wp-support-forum',
                    null,
                    50,
                    $this->is_submenu_item_visible( 'support' )
                );
            }
        }
function _add_default_submenu_items ( ) { if ( ! $ this -> is_on ( ) ) { return ; } if ( ! $ this -> is_activation_mode ( ) && ( ( $ this -> _is_network_active && fs_is_network_admin ( ) ) || ( ! $ this -> _is_network_active && is_admin ( ) ) ) ) { $ this -> add_submenu_link_item ( $ this -> apply_filters ( 'support_forum_submenu' , $ this -> get_text_inline ( 'Support Forum' , 'support-forum' ) ) , $ this -> get_support_forum_url ( ) , 'wp-support-forum' , null , 50 , $ this -> is_submenu_item_visible ( 'support' ) ) ; } }
Displays the Support Forum link when enabled.

Can be filtered like so:

function _fs_show_support_menu( $is_visible, $menu_id ) {
if ( 'support' === $menu_id ) {
return _fs->is_registered();
}
return $is_visible;
}
_fs()->add_filter('is_submenu_visible', '_fs_show_support_menu', 10, 2);
Displays the Support Forum link when enabled .