I have a forum I may be migrating over to XenForo, and switching my license to the new domain. Before I do this though, I'd like to give the current administrators a way to test the backend, and mess with the changes before we go live. I would like this to happen apart from my current forum. Is this allowed? Where the board is closed to only administrators, but they can test it out? If so, do I just install it as a normal install, or is there some special method?