I modified the https://wordpress.org/plugins/cpanel-manager-from-worpit/ wp plugin, to make it works in wpms just as a premium plugin for pro-sites.
Before my changes it was possible to create sub-domains, databases or ftps with it. Now it is just emails and it is not possible to see the emails of the hole network as before, just your website at wpms.
But it still needs to insert a security access key at http://xxx.pro/wp-admin/admin.php?page=worpit-cpm-security and save at least once, my cpanel credentials here http://xxx.pro/wp-admin/admin.php?page=worpit-cpm-main
I would like a way to make it works without the encrypted key or the data saving. I think I can make it by myself, but with the help of you guys maybe it could be faster. Is it possible? Or are you guys already working over something like that?