Duplicate Enfold sites

Hi guys, how are you doing !!??

I am currently designing various sites of the same Company group using Enfold theme.
I’ve just finished the first website, and need to advance in the second one.

All upcoming websites will be based on the same structure: same menu, same header, same galleries, etc.
So my plan is to make an entirely backup of the first site, upload it to the second site server, and then make the necessarily editions:change text content, photos, etc.

Of course I will buy 1 enfold licence for each one of these new websites, but what I need to know is how to implement every new license on each new website. Usually procedure is installing every new license from the scratch, but in this case I won’t follow this path.

Hope was enough clear.

Have a great weekend!
Santiago