For the most part, the choices are the same as for Grouped graphs.
For each data set, decide if the subcolumns should be shown as scatterplotm aligned scatter plot, before-after (used rarely for nested data), symbol at mean, bar, box-whisker or violin plots. Use the "global" setting to change all data sets at once.
At the bottom of the dialog, choose which Y axis the data set is plotted on and whether to show a legend or not.