AMOSi:Y Screen

an example can be found on AMOSPro_Examples:Examples/H-5/Help_50.AMOS

Converts a Y coordinate in hardware format into a SCREEN coordinate relative to the present screen.

sy=Y Screen(hy)

If you include an optional screen number in this function, the new coordinate will be relative to your chosen screen.

sy=Y Screen(screen number,hy)