Hi, I asked the same question from Avada and Envato. The Question was, “can I use envato regular license to create wordpress multisite setup. Sites will be like, site1.mydomain.com, site2.mydomain.com. Contents will be different but about the works of a same organization.”
So one of Envato help center person said, “yes you can”. And Avada said “you can’t, you have to buy different licenses”. So I asked them about the conflict of their answers. But they didn’t gave me a correct answer. So please someone clear this mess.