wp_network_dashboard_setup WordPress Action Hook
The `wp_network_dashboard_setup` hook is called when the network dashboard is initialised. This hook allows you to add your own custom actions and filters to the network dashboard. It also gives you access to the $wp_network_dashboard global object, which you can use to modify the network dashboard to suit your needs.
do_action( 'wp_network_dashboard_setup' ) #
Fires after core widgets for the Network Admin dashboard have been registered.