I can not change "Hosting Type" of my domains configured in Parallels Plesk 11.0.9 for Linux.
I have read this kb. It is exactly the problem I have, but I have permission to create domains and still can not change the type of hosting
The subscription plans define, what limits are set for a domain in the first place. Please see the limits there and change it to your needs ( as admin or reseller, which has the right to change the subscriptions plans ).