We're in the middle of procuring a server to host Confluence (and JIRA). In the meanwhile, we have an instance where I bought an initial 10 user pack. I would like to upgrade this license with another license we already bought but I didn't see information on how to migrate license from one server to another. It looked like your license can only be applied once per server? I didn't want to apply the higher user count license to a server that'll be decommed in a few months.