I would like to install Themler on my wordpress site, but I see that I only can work on an activated (live) theme? I would like to work in a preview mode, so that i can switch to the new (themler)...

Hello, I noticed in the theme zip when you download for Wordpress, there is a duplicate of the files, etc in the preview folder. Just wondering what that was for and if it was needed. Not sure if it...