If you tend to have the same drivers assigned to the same vehicles and shifts throughout the week or on a given day, you can easily copy a previous days assignments to another day.
Hover over the fly-out menu on the left, click on Dispatching and then on Assignments.
Select the date you'd like to copy your assignments to.
Click on Assignments Tools and Copy Driver/Vehicle Assignments From Date
Select the date you wish to copy the assignment to.
Click the Run button. The Assignment information will now be copied over from the date you selected provided the driver and vehicle are both available.