Network

In Premier Rush under create a new project a directory tree opens and at the bottom a drop down menu displays the letters "Network". 
    Under the Network directory I can only see two files I have shared and cannot figure out how to get the shared folders I need on that list also.

I am using an old PC as a file storage as I do not have the room on my editing PC. I am trying to transfer one file at a time to edit without going thru the cloud. The network all works fine, it is just Premier rush I am having a problem.
    Any help out there?