I've been puzzling over this one for ages, but haven't worked out any method of doing it yet, so I thought I'd ask here, in case anyone else had any idea. I need to create a glideslope indicator that has three indications (above/on/below glidepath), unlike a PAPI's two (above/below). Because the SODE planar separator only allows two entries, I did wonder if I could create two lamps, one of which had no illumination effect above the separator, to recreate the "below glidepath" indication. I soon realised, however, that the second effect from the "above glideslope"/"on glideslope" would still be illuminated. The same would happen if I used three different objects, because the middle "on glideslope" indication would need to have a cut off separator both above and below it. So, does anyone have any bright ideas of things that I've missed? Cheers, Ian P.