The Relocate VM button is on the VM control panel.
The platform displays a list of compatible hosts.
When you click "Show details", the platform displays the host metrics, so you can check that the new host is not overloaded
After it relocates the VM, the platform displays the new host details, for example, with a new Remote access address.
If you click the Relocate button again, you should see the original host as a new candidate, which means that the relocate has worked properly.