The Calendar web part in Departments uses a dynamic path according to the alias path of the department:
{ %cmscontext.currentdepartment.nodealiaspath#% }/Calendar/%
where the global calendar (displaying Events) uses a fixed path (like /Events/%). Please remove the spaces from the macro expression if you copy it.
To see the global Events in the department calendars, you can join the global event and department-specific event document paths and set the general path to the global scope.
Example department-specific calendar settings look like:
Path: /%
Where condition: NodeAliasPath LIKE '{ %cmscontext.currentdepartment.nodealiaspath#% }/Calendar/%' OR NodeAliasPath LIKE '/Events/%'
Management of the calendar items will take place in the appropriate scope. You may also need to
modify some of the transformations, because clicking on the event details can take
you from a department calendar to the global one.
-zc-