[kronolith] Global Calendar & Permission problem

[NG KA WAI]

Dear all,
   
    In kronolith, Meet a problem:
       1.   I would like to set to a global calendar to share of all 
user. And Admin or Department Head can view all information in the 
calendar. Specific users can add or delete or modify calendar 
infomation. (For example: User A add new event in Global Calendar. User 
B ,C, D cannot be view, add or delete; Only Department Head or Admin can 
view or edit ).

          In the current environment, I am using a Temporary user 
account to share a ABC calendar of all user. And 
            set permissions of calendar :     Owner Permission : Show, 
Read, Edit, Delete
                                                           Object 
Creator : Show, Read, Edit, Delete

          Above setting, all users can add, delete, view events 
correspondence to owner and creator). But other users can view Event  
Header (i.e. Event From XX:XX am to XX:XX) in Calendar. Any solutions to 
hide the Event Header, Assumption other general users are not view other 
users information.


Would you talk me how to solve it or how to add a Global Calendar?

Thank You

KA WAI