pfft. Not at all. I did the device type for my own use, and just shared what I did. Please be assured that if I didn’t have the need to do the work for myself, I wouldn’t have done it.
Okay… When you start the ST app, on the first page called “dashboard”, do you see “Doors & Locks”? (I honestly don’t know if ST removed that or not… I might only have it due to legacy stuff.) If you do have that, you should be able to hit the gear icon, and “Add a door” and follow the prompts from there.
If “doors and locks” is NOT there, I have to be honest that I have no idea how to get it there. Well - try what I suggested and if the section isn’t there, we can start asking ST folks…