[Therion] Drawing rigging

Hi folks, I am trying to draw rigging on my elevation in the usual way, i.e. black dots for bolts and lines down pitches to indicate where the rope hangs. In Therion, "rope" seems (oddly?) to be a point symbol (allowing the user to place a small pretty picture of a backed up belay anywhere on the survey he chooses), rather than a line; further, there doesn't seem to be any existing line symbol that will naturally do the trick. (Also, there doesn't seem to be any natural way of user-defining a suitable line symbol, since lines are oriented and ropes shouldn't be.) Is there a standard way of doing this? Thanks for any tips! Hilary.