Do You Have a Two Way Relationship?

I have a to and fromi my projects data bits, but i only action the two. I don't touch the from, because the from is automatically generated from the two. So what that means is the from is sent is essentially just like a viewing thing. If it's not a top resource, then there will be something in the notes relation. But i also see all the other sub notes that i've made from it. That allows me to imput myself anywhere in that trail of notes,. And i can go up or downshi can input mye i put myself into the computer er file, so i can go all the wey up and al the way down.