Thanks for the dialouge, maybe in numbers we may eventually get the program to function as advertised...The only help on my hard drive is 2015, our 2016 help is online, neither mention in detail how to apply, adjust or the purpose of the radio buttons. Basically like the majority of the the other documentation, it just mentions that certain commands, macros, etc...exist.
We have successfully created many different compound and/or extruded profiles for other projects, with 100% success. But the wheel has run off when trying to create a custom cladding.
When I get time, I will draw another profile in mm to see if that works. May take a few days, but I will try as we need the custom claddings, it is a roofing we use regularly.
there seems to be only one snap point on the radio buttons, ( I moved them up an 1/8 inch so you could see the snap point )

....How easy it is to acquire knowledge, yet how difficult and painstaking is the process of gaining wisdom. .... Chuck Swindoll