[Therion] Altitude

I'm trying to put "altitude" points into my map. I've used point altitude successfully, but the number over-writes the cave. I've found I can move the point outside the cave outline, and it still reports the correct altitude, but it the "dot" appears now outside the cave, of course, as attached. Is there a way of specifying the position of the altitude "point" within the cave passage, but moving the text outside? I could do this manually of course with a point label, but then the altitude data would not be computed from the centreline, so not ideal. Can anyone advise me on this one? - Ben