Hello @brauliofarnese
Thank you for your helpful proposal. Adding submenu support is in my to-do list. This feature will be available in next update.
But if you want to add this functionality to your site right now you can follow these steps:
Create a child theme
Add this code to your child theme’s function.php file
function winterblues_menu_settings() {
wp_nav_menu( array(
'theme_location' => 'nl-header',
'depth' => 0,
));
}
Then create your own style for submenu elements and add them to your child theme’s CSS file.
Thank you!