Two Computers One Cheif

[hbs]

I currently have Chief Architect X5 on one computer - but I would like to be able to use it on two computers.
Is it possible to have it installed on two different computers with on license? They will never be used at the same time - so I was hoping I would be able to install to another computer and just move the key when I need to use it.. Is this possible ?
I don't really want to have to buy a whole other license