Click on the Add New button, this will create a new line in the Grid where you can enter the details for the new Vehicle.
The minimum requirement for this is Reg number. Once entered don't forget to click the SAVE button to save your changes
Note as well that if you are re-entering a previously used vehicle, check that the Vehicle is not already set-up but has been made non-active.
To do this untick the Only Show Active Vehicles checkbox to list ALL vehicle.
If it is there then ticking the Active checkbox against that Vehicle will make it active and useable again
