The first time you install Wordpress or any other application into Installatron, location is pretty straightforward because at that point there's really only one place you can put the application: into your primary domain. However, once you start creating subdomains and additional installations of sites, it can get a little tricky, especially because Installatron tries to protect you from overwriting existing applications by autofilling the subdomain field on successive applications after the first. As a result, if you're not careful, it's really easy to accidentally install your second version of Wordpress into a both a subdomain and a subfolder. In other words, you want your site to be at sandbox.janestudent.com but you accidentally install it to sandbox.janestudent.com/blog/ because you forget to clear the subfolder line in Installatron.
The short video below will show you how to use the cloning tool in Installatron to move existing sites into new locations: