I’m sure this is a very frustrating situation. At this point, I think looking at the IDE, which is the link that you just gave, is only going to make it more frustrating. 
The IDE is part of the old architecture and the information there may be incorrect or out of date.
Instead, you can use either the Simple device viewer or the API browser plus, both of which are community projects that work with the new architecture. They will give you similar information, but it will be up-to-date.
See post three in the following thread