Most likely you have your server set up in Production mode, not Staging Mode.
In Unifier Configurator, general tab, you must have the server set up to "Staging". If set to Production, then uDesigner functionality will be disabled, even with God rights.
Typically, you would have two separate servers, one in Staging Mode and one in Production Mode. All work in uDesigner would be done in the Staging server and then Imported into the Production Server.
I think Rudy is correct. Also, check your company admin permissions to make sure you have the right permissions set for that user or group.
Thanks Rudy and Sean, Rudy was correct. When I had installed it on my PC I followed the installation guide a little to closely and set the server to Production.
Have now modified it to Staging and can add BPs etc