Just started using Zimbra and so far I love it. One issue is my company is an ISP and we have multiple sales and help desk support techs managing calendars for our field techs. Often we have to move things around in the schedule from one tech to another. Zimbra doesn't appear to have the capability of moving an appointment from one shared calendar to another. The item in the appointment labeled "Calendar" is grayed out after saving the appointment.

Is there anyway to accomplish this goal? Or is the software simply not designed for this type of use?