[kronolith] Clarification on how permissions work on shared calendars

[gimili]

Is it possible to have a shared calendar where authenticated users can 
add events and edit and delete events if they are the creator but only 
have read access to events where they are not the creator?  I can't seem 
to figure this out.  If I give authenticated users edit permissions they 
are able to modify all events even if they are not the creator.  If I 
remove edit permissions they can't add new events.


Thanks for any tips/advice,
-- 
gimili