Polyend Play - How to make a melodyfill bass and chord pattern?

Hello, I wanted to program some bass lines for the bass fill button. My line of thinking was to treat it like the beat fill where the rows are populated from “Bass” or “Synth” samples relating to the bass or chord function. these patterns were named and saved in the “MelodyFills” folder.

Putting these on the play and using them to fill had nothing in them. Did I miss something about making these pattern files?