HELP! Calendar Sharing Across Groups

HELP! Calendar Sharing Across Groups

I am using Zoho Business and need help with the calendar.  I understood that when you create events that you could assign members to those events and that works fine.  However, there are times when events need to be assigned across a group and it is time consuming to assign each member/user individually.  I thought it was possible to share calendars between groups?  Am I missing where to do this?  We need checkboxes or a group dropdown or something on the advanced tab which would allow us to assign certain events to one or multiple organization groups.  If this is already possible, please let me know how.  I have gotten frustrated because I have entered company-wide events expecting them to automatically show up across our users calendars and they do not show up unless I go in an specify each organization user as a member of that event.  Please help.  Thanks!