Have you tried starting with a preset and then altering the windows by selecting the teal (bluish-green) window and typing numbers in the "x,y" or the "w,h" boxes at the top?

These correspond to the x,y of the top left corner of the window and the width, height of the window from that point.

BTW, the .max files are of the format below for the parts after the display name. The setup in the .max file isn't quite the same as the maximizer window inside Keyclone. The top left corner is 0,0 and continues right to 0,1440 to 900,0 at the bottom left corner and the end of the display is 900,1440 ( based on a 1440 x 900 widescreen display)

So, each frame is in the format:

<upper left corner pixel>, <upper right corner pixel>, <lower left corner pixel>, <lower right corner pixel>

The height and width are no involved in the .max file.