Multiple Versions on various commputers can I get them combined

So I have Lightburn that I Purchased when I was using a red and black laser, I then bought 2 new Boss Lasers when came with the software I have 3 computers I think each one has its own software, I just updated my license on one computer the second computer needs to be updated now how can I combine all 3 computers under 1 license so I only need to renew once and not 3 times.