I too would like this type of control over point station visibility. I'm sure it can be done with metapost code, by just redefining the temporary station symbol and survey line fragments as barely visible or invisible dots. There may be a hint as to how to do this in recent posts on splay lines and points. It's too low on my priority list at the moment to follow up, but I have been of a mind to do this for a year or two. A more satisfactory solution would be to include this functionality directly into Therion, along the lines of what Gilbert was trying to do. symbol-hide point station symbol-show point station:fixed Related to this, I suspect the behaviour of pdf outputs with respect to flag:<entrance/continuation/sink/spring/doline/dig> has changed. With recent releases text and symbols associated with stations that have these seem to 'print' by default. This is reasonable, however I have not figured out how to stop them printing. There should be an easy way to do it, but I have not found it yet. Ideas anyone?