[Therion] extended section

hi, i have a question. i have a loop to adjust, if i do not equate stations in extended section there is an altitude gap between them. of course therion does not know they are at the same altitude (or depth). if i equate, the drawing is awfully distorted because therion tries to draw them at the same point. is there a way to tell therion that two stations are at the same altitude (depth) ? (but to draw them separately). thanks, marco