In addition to Samir's answer, you can also enable the "All Files" option by doing the following:

1. Open your site in SharePoint Designer 2013.
2. Click Site Options on the ribbon.
3. Change the value of showurlstructure to 1.

https://i.imgur.com/Q1NtZkW.png

In addition to Samir's answer, you can also enable the "All Files" option by doing the following:

1. Open your site in SharePoint Designer 2013.
2. Click Site Options on the ribbon.
3. Change the value of showurlstructure to 1.