Through your account in Command Center, you can "tag" a server with a label or name. We no longer "re-name" a server, but now add a tag as the device name. The steps to tag a server are below:
1) Login to your Account.
2) Click the Appliances option in the top bar.
3) Select the UID from the list on the left.
4) Click the edit button in the Tag field to enter a new tag.
5) Click the Save icon when finished.
The screen shot below is an example.