Table of Contents Help

I’ve set the file up with each chapter having its own folder with that chapter’s text within it. Problem is that I want to use a different heading for a few chapters within the actual book, but keep them the normal way for the TOC. Example:

I want the TOC to look normal, like:
Chapter One
Chapter Two
Chapter Three
etc

I want the headers within the book to be like this (centered and spaced correctly obviously)

Chapter One
Erik
(text)

Chapter Two
Aiden
(text)

chapter 3
sam
(I chose text as-is during compile because the formatting and paragraph spacing is different for sam’s chapters. Right now, I have sam’s chapter headings added into the text file as I want them to look, and unclicked the box next to the Chapter folder during compile. But the files end up with having two chapters named the same thing - one for Sam and then another for the next chapter)

How do I do this? Should I take out all the chapter folders and manually add them into each chapter? What will that do to the final TOCs in the ePub, mobi, and pdf? Thanks!