Today I learned that in many fields within the OpenRoads interface, instead of entering 1.5/12 for 1.5 inches I can enter 1.5". Now, that doesn't mean much since it's a pretty obvious conversion. But apparently I can also enter "1m" or "1 m" for 3.2808 feet.
When prompted for a radius, you can enter d3 for a 3-degree curve. (Though from memory I've seen some slight discrepancy between the radius provided and result of 18000/pi/D. It may be that I am remembering other numbers provided by other sources.)
Does anyone know of any others? Is there a list somewhere?