Before starting placing the products in the drawing area, you need to select the desired Product Series that you are going to work with.
For Shelving Storage, you can create new or edit existing product series in the Administrative Tool. In the Product Series choice, you can then either select one of these products series or click on Customized which will enable you to customize a shelving system in the Design Specifications dialog.
To read more about the Shelving Storage tab, click here.