I've enabled Wordpress Multisite (subdomains) on `www.example.com` and created a subsite @ `s.example.com`, and then installed/enabled [WP Multi-Network](https://wordpress.org/plugins/wp-multi-network/).

I've created a new network @ `s.example.com`.

How do I create a subsite in that network, e.g. `s.example.com/subsite`?

`s.example.com/wp-admin/network` redirects to `www.example.com/wp-admin/network`.

If I create a new site @ `www.example.com/wp-admin/network/sites.php`, I can't make it a subdomain or subdirectory of `s.example.com`.

Help appreciated.