Hi @Richard_SL, welcome to the Streamlit community!!

One of our community members, @BugzTheBunny, has created an amazing working example of a logging app. While it may not be exactly what you’re looking for, do you reckon you could repurpose the code to build your logging text box?
I’m still having a bit of trouble picturing exactly what you want to create. It would be great if you could break it down more or elaborate if @BugzTheBunny’s example isn’t what you have in mind?
Best, 
Snehan