CRUTCH? This has nothing to do with our different styles ... i do write notes similar to what you have done but i use One Note. We had been writing notes but due to times we stopped writing because of COVID and you only were writing and then later it was just me, things were getting lost. With so many characters and story lines it was easily done.
This outline helps us easily track things, we can colour code things as we need to, we can both see it and easily decide where things will go. We can write reminders and put them later chapters to make sure don't forget something.
It is a brilliant document that we both need to finish this story. Thanks, Wayne, i'm grateful you took on the task.