Until the dispatch is marked as "ready", you can change the information in an existing dispatch and the packages it contains.
On the Dispatch List tab, select an existing dispatch the Dispatch list. The list can be searched and filtered using the Search tool and the Filter combo box.
The contents of the selected dispatch display in the Packages in dispatch list.
Use the and buttons to add and remove packages from the selected dispatch.
On the Create dispatch list tab, modify the information as needed.