Hi Victor,

I hope you are well. 

I was always curious about this. Having "All" set to "yes" and then having a "no" in one option, like foot access, seems confusing because "All" is not logically true. Having "no" in "All" and "yes" to the ones that are permitted seems to more accurately reflect the logic of the situation. This is probably the programmer in me speaking.

But then I think the most important thing is how rendering clients interpret this kind of information.

I don't know whats best, keen to get your thoughts.

Nick