there is in Lab Manager, but not in vCloud Director as far as I know. Can you file an SR as a feature request, and PM me the SR number?
I know you aren't the only one asking about something like this. If the feature exists, it's probably a DB switch (like Lab Manager).
Just know that Lab Managers feature was global ... just On = suspend at lease expiry, or off = Power Off at least expiry.
I'd like to see it as a per organization flag or something like that.