Non-motorized in key?

This question falls within a particular method, a new key, but it is understandable to take a closer look at whether this method is a good choice. Given the changing society and categorisation of vehicles. In itself, I think it’s a good continuation of the original question, because my goal was to use a preset belonging to the road sign to indicate it.
Making a preset gives you a certain responsibility. So that others can use it without thinking too much about it, how to tag those little categories. With their separate spellings.

A detailed discussion is wanted on this suffix method.