On this page you specify the slices to plot.
For type 3 data, the z-layers are plotted as horizontal slices and the different time steps are plotted on separate plots.
For type 2 data, the specified subseries in time is plotted as horizontal slices.
The layout is specified as the number of slices per plot. In order to see something on the plot, you have to specify at least two slices per plot.