Can't get the elevation marker to change size. I can change the size of the text, but not the round marker itself. (in the section/elevation dialogue box)
Which marker are you using for your elevations. I am using the Marker_NSC SE9. I think the settings are the same for this marker for the last three libraries.
If you open the marker's settings (control-T) you will see one called marker. There is a setting there to adjust the markers size. The one above is for text size.
I am not sure how every marker works but they are all probably similar.
That marker seems to be buggy in that regard. It seems like that marker is intended for interior elevations - is that what you are using it for? Try the Elevation Marker_NCS SE9 if you are using it for exterior elevations. If you are looking for an Interior Elevation Marker Tom Waltz posted one he had made at this link (thanks again Tom). http://archicad-talk.graphisoft.com/viewtopic.php?t=6319&highlight=interior+elevation+markers