Unity UI Ideas for Connecting Text Boxes

Hi. I'm trying to make a journal program, so I'd like to get two text areas connected to each other seamlessly so it's like writing in an open book, two pages visible at a time. I'm currently using two input fields that can navigate to each other, no problem. When moving from one text area to the next, I (attempt to) carry the overflow from the first text box into the other for uninterrupted typing.

Progress is slow but sure, but I feel like I'm reinventing the wheel. Has anyone done this before or have any suggestions on how to do this?