[Inkscape-user] Fill between strokes

I've been trying to figure out how to use the 'Fill between strokes' path effect in 0.92 but I can't figure out what sequence of operations to use, or what the 'Link to path' and 'Select original' buttons are supposed to do. I've searched for instructions or tutorials without finding anything that matches what I'm seeing in 0.92. Can someone please point me in the right direction?

Thank you.

- Robert