I created a test GUI to display character classes and their statistics but I don’t have enough space on the camera to fit more information. Can I code in a scroll bar or do I have to do it on the camera/scene?
You could cheese one in with OnGUI … I do that all the time for debugging.
But what you describes sounds like you want to use the ScrollView, and it would be Extremely Hard™ to put that in by code, as it has about 25 moving parts I think.