network_admin_edit_{$action}
Action Hook: Fires the requested handler action.
Source: wp-admin/network/edit.php:38
wpmuadminedit
Action Hook: Fires just before the action handler in several Network Admin screens.
Source: wp-admin/network/edit.php:28
network_admin_edit_{$_GET[‘action’]}
Action Hook: Fires the requested handler action.
Source: wp-admin/network/edit.php:36