Go into the Vehicle Module and select Vehicle Parameters.
Within Vehicle Parameters select Accessories.
You can either select a page that already exists or create a new page.
To create a new page select "Add Page" - and enter the required description.
To add an Accessory - select the required page and then select "Add Accessory". The window that displays will look similar to the below:
Enter the required Retail and VAT status for the accessory line.
You can also tag a nominal code to the accessory, which will go through separate to dealer options.
On completion, select Update.