Your step-by-step approach would be vastly more user friendly than the current LAMBDA implementation (where the user needs to put the entire nested function in

Your step-by-step approach would be vastly more user friendly than the current LAMBDA implementation (where the user needs to put the entire nested function in the Name Manager). Simon Peyton Jones advocated for a similar step-by-step approach: https://www.microsoft.com/en-us/research/uploads/prod/2018/11/elastic-sdfs-jfp2020.pdf https://www.microsoft.com/en-us/research/uploads/prod/2018/1.... At least, step-by-step can be facilitated with a programming language (Visual Basic, C++, Python, JavaScript). ...That could be a sweet Excel add-in.