Prologues and Parts

My novel has been working (compiling) great with a Binder that goes Parts | Chapters | Scenes. I now need to add a Prologue with scenes before Part 1. I put a “Prologue” folder at Level one with scenes below, but this compiles like a Part since I can’t figure out how to make the compiler differentiate between a folder with folder children and a folder with text children.

I thought about a"Part 0" folder with a Prologue folder and scene text files but couldn’t figure out how to eliminate the “Part” in the output.

What is the solution? Do I need to turn Prologue into a Level 1 text file (integrate the scenes)? Will this compile correctly with the, now embedded, scene break markers? Then use Title Adjustments to not mess up the chapter numbering?