Rule Mix Maximum Number of Initial Rules Use this option to specify the maximum number of initial rules for generating Option Trees. To Specify the Maximum Number of Initial Rules: Select Automated as the Mode. Select Rule Mix as the Automated Model Type. Either type the maximum number of initial rules desired in the text field, or move the slider to the right or to the left to specify a value. Tip: To change the scale of the slider, right-click on the slider and select Rescale Slider from the pop-up menu. Change the upper and/or lower boundaries in the window that appears, to rescale the slider and click OK.