When a value for a column on the axis of a cross table is missing, "(Empty)" is displayed. This looks awful. It should be possible to display those entries as empty cells. It can be done by using something like sn([axis column], "") for strings or sn(string([axis column]),"") for reals, but this is cumbersome. There should be a general option to display the cells as empty.
Note: I am not thinking about cell values, but the values on the horizontal and vertical axis.