[chef] knife cookbook usage

[Hedge Hog < >]

Hi,
After reading http://help.opscode.com/faqs/chefbasics/knife
I was expecting to see something like `knife cookbook add <cb>` or
maybe `knife cookbook import <cb>`

So I wonder if knife supports using cookbooks that are not obtained
via Knife's 'cookbook create' or 'cookbook download'?
Specifically I'd like to have cookbooks in my chef-repo that brought
into the folder by something other than knife.
Is this a supported use case?

Best wishes

-- 
πόλλ' οἶδ ἀλώπηξ, ἀλλ' ἐχῖνος ἓν μέγα
[The fox knows many things, but the hedgehog knows one big thing.]
  Archilochus, Greek poet (c. 680 BC – c. 645 BC)
http://wiki.hedgehogshiatus.com