The "Folder Name" setting displays the current Auto-name folder for the currently selected printer. Clicking the "Change Folder" button allows you to change the folder. The folder can be either on the local computer or on a shared network location, but you must have write permissions to the folder.
Win2PDF Desktop Configure Auto-Name Folder
The "Sample File Name" listed at the bottom of the window is updated to show what the resulting file name will be. This option can be combined with any of the other auto-name options.