So who has the power to add sections 'round here?
It's actually ultimately a social-pressure thing.
First people propose the addition...then there's a ground-swell....combined with a little deft investigation of practicality and interest in skinning it and in using it/them.
Followed by much begging and pleading....spot of bribery, coercion, threats and finally the odd horse-head-in-the-bed moment....
....et voila!....