Transfer a Windows PC license to a Mac

Hello,

I have been looking in the FAQ, forums and on the web to see how and if it is possible to transfer a Draftsight Pro license from a Windows PC to a Mac Pro oSX  10.9+.  Are licenses OS agnostic, or are they generated on a per OS basis?  Has anyone transferred licenses between different operating systems?  I am not certain on the version that I am running, but I purchased it this past May.

 

Thanks, Alex...