G'afternoon Gares and welcome to the forums!

you would only need to have 1 keyclone license per machine you wanted to use at any one time. if you went from an old laptop to a new one, you'd just transfer your license to the new beast. BUT... if you wanted to use the old AND new at the same time, then yes, you would need a license on each machine (today's hardware makes 5 boxing fairly easy on a single machine)

if you have any more questions, please feel free to drop me a PM

have a great night,

Rob (keyclone developer)