Licenses for both operating system???

I installed my Element 8 on Mac. But I would also like to use it on my PC as well since I need to work on both platforms depends on my situations. Is it possible to use it that way or do I have to purchase a PC version? Thank you so much.

The only way is to buy a Steinberg key and put the license on it, that way you can take the license to the platform you want to work on.