uploading theme on one domain first then on second domain after its ready and set.

Can someone help please?

I want to upload the themeforest.net theme on domain A first and once everything is ready as per my desired layout then will upload the same theme on Domain B.

Will themeforest.net allow me uploading the same theme on 2 domains??

After the Domain B is ready, i will remove the files from Domain A.

I will run only one domain with the theme.

Can someone help and share how can i do that.

Thanks in advance!