From Willy: Define a standard for helper parts

[Roland Melkert]

Using Category ("Helper") the part description is more free to mention a helper set name as the first word. For example "Arrow" or "Arrow3D". Then, of course, other authors must follow this rule to announce their helper is a part of this set. But I feel it's impossible to standardize anything more about names because we cannot predict what kind of helpers people come with, in future. So let them to discuss that when time comes, for each helper set.

With a "Set" I was more thinking about the whole collection a certain author maintains, like:

"Roland's flat arrows - short single"
"Roland's flat arrows - short dual"
"Roland's flat arrows - long single"

A bit like some brand's line of interconnecting products or something.