Hey! I am successfully using butler to upload and update a build. However, what is unclear to me is how do I upload a new item to the same page? Do I just upload a different folder from my HD or..? How does it work? I'm feeling reluctant to try it myself because I'm scared I'll mess up the existing thing.
I'd like to upload a new item (a demo of my game), but still keep the existing build - which some people are already playing via download keys.

Thanks!

Anyone?

For anyone else having this confusion. 
All that is needed is to come up with your own channel name for the version. I used 'windows-demo' and then flagged the file as demo by hand on the page.