Comment 5 for bug 287543

I didn't overlook that ability, it just seemed that if I need a new part for every storage, I'm not gaining much over specifying all the storages in "zope-conf-additional". So put it down to laziness :-)

If you don't want to lowercase the names (which I understand), an option to provide sequential numeric storage names (starting at 2, obviously) would be nice, and consistent with typical usage.

fwiw:
[filestorage]
 recipe = collective.recipe.filestorage
 parts =
     MyStorage
[filestorage_MyStorage]
zeo-storage = mystorage

seems more concise :-)