look at this document.Configure multiple ap manager interfaces.http://www.cisco.com/en/US/products/ps11630/products_tech_note09186a0080b8450c.shtml#scenariosSent from Cisco Technical Support iPad App
You buyed the wrong license.Becouse the current license is plus you have to add plus licenses.There is no way to combine these licenses in WCS.When you upgrade to NCS it is possible to upgrade both types of licenses.Sent from Cisco Technical Support ...