There are many ways to accomplish the same thing - some methods work better than others in certain situations.
I made a second video on the topic - this one showing the compete process for a configuration having multiple F2Fs.
No LISP, no Point Filters, and no fitting books (at least not directly... still had to enter the information once into the spreadsheet). I started from a clean drawing and ended up with a sloped system having a vertical riser. Fill In 3D was used only once at the end.
Note that with this method, sizes do not have to be known until converting to Design Line.
I would be interested in the process other would use to create the same configuration.
Here is the link:
https://youtu.be/MYFYKqcWSEA