Specify the Arrangement of the Factors in the Plot

Click the OK button on the Compute marginal means for dialog box after selecting the factors for the marginal means plot to display the Specify the arrangement of the factors in the plot dialog box.

Line pattern/x-axis, upper/x-axis, lower
Select the assignment of factors to either the Line pattern; x-axis, upper; or x-axis, lower in the final plot. Note that the orientation and layout of the x-upper value labels can be adjusted via the Graph Options dialog.
OK
Click the OK button to accept the selections made in the Specify the arrangement of the factors in the plot dialog box and return to the previous dialog box.
Cancel
Click the Cancel button to return to the previous dialog box. Any selections made in the Specify the arrangement of the factors in the plot dialog box will be ignored.