I?m working on vBSubdomains v2.0 @ this time.
And there will be such a option too.

Some more details:
* Member will see the 'Hint' of vBSubdomains in UserCP -> Options only if he is allowed to use it
* Admin can set amount of allowed subdomains per user
* Admin can set usergroup(s) who will able to use subdomains
* Admin can set vBSubdomain-VIP who don?t need min. amount of posts
* Admin can disable/allow vBSubdomain for each member
* Full integrated search for vBSubdomain-user (adminCP -> search user)
* Full integrated search for vBSubdomain-VIPs (adminCP -> search user)
* custom error-templates
...............................................
The options/changes above are all done.
Now I have to translate everything (templates, etc.) in englisch and
a hack-instruction must be done.
After that I will release it as vBSubdomains v2.0 (beta1) in forum "Beta Hacks".
Nice greetings,