Lower Number of Dimensions to Fit Use this option to specify the lower number of dimensions to fit. To Specify the Lower Number of Dimensions to Fit: Either type the desired value in the text field or move the slider to the right or to the left to change the 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 .