You can transfer a license allocation from one PC to another by Deactivating the license you no longer require. Please follow the deactivation steps outlined in our FAQ post: How do I deactivate my software?

If you are a Carveco Account (beta) customer, we have made it even easier to identify which computers currently have software activated on them.  Current activation details are available for both subscription and perpetual software.  To view this information, please click the Manage button on the relevant software order within your Transactions page.  The activation information required will then appear at the bottom of the My Software Information/My Subscription Information pages.