When using a station tracker (in which one view is the profile and one view is the plan view), add a command to "drop" a line or polyline at the current location of the station tracker. For example if you are following a profile in one viewport, place a polyline at the location of the station tracker in the plan viewport (can use same length and orientation of the station tracker at that location). This would be very useful in identifying key grade breaks in a profile without labelling all grade breaks.
