Fold license is per machine. If you want to have it on two or more machines you'll need the appropriate number of licenses. We have additional discounts in that case.
We have license transfer cycle in that case. First you need to uninstall Fold using the "Uninstall" button in Fold's "Activation info" window. Then send us message at our support and we'll pick it from there.
we are doing our best to answer your e-mails in less than 24 hours