I am working on an app that synthesizes long texts, articles, essays. You paste in the text and the system starts synthesizing. You can choose a size of the final format, say Short, Medium, Elaborate only during the first 2 steps of the 4 steps process. How do I make it clear that the user can only do that during the first 2 steps? Yes, we could ask the question before the user clicks Start but we wanted to make it as quick as possible, upload and hit Start. then you can choose..