Add Sub-Pages to Gravity Forms Admin Navigation

Introduction

If you want to add a page to the Gravity Forms Admin navigation options, add the following code to your theme’s functions.php file.

add_filter( 'gform_addon_navigation', 'create_menu' );
function create_menu( $menus ) {
  $menus[] = array( 'name' => 'simple_addon_page', 'label' => __( 'Simple Add-On' ), 'callback' =>  'simple_addon_page' );
  return $menus;
}
 
function simple_addon_page(){
 
    echo 'Simple Add-On Page';
 
}

This would create a page called Simple Add-On that shows text on it that says Simple Add-On Page.