[Tagging] Count of urinals

[Shu Higashi]

Hi,

I was asked by a woman if she can map the count of urinals (or
something other appropriate name in english?) in a toilet.
Because it is very important for women to count their waiting time.
So I'd like to propose a tag to count the urials.

For example:
amenity=toilets
urinals:female=4

May I add this combination to the wiki page?
http://wiki.openstreetmap.org/wiki/Toilets

Though it's dificult for men to map :)

Shu Higashi