I am the author of this post. This post was written mostly for my students and is about a particular transition from a "single purpose" notebook where they have

I am the author of this post. This post was written mostly for my students and is about a particular transition from a "single purpose" notebook where they have solved a problem on one file and trying to collaborate with me on their project. For the situation I show as an example, you wouldn't want to bring up a dialog box every time you run the cell as in most cases you're running it many times to get things right. Even when the code is working perfectly it isn't useful to pop up a dialog during a long-running analysis. The target audience of this post are not comfortable with running scripts from the commandline. I have tried teaching that approach and failed. This is a half-way point.