http://communities.bentley.com/products/microstation/f/19565/p/62588/153995.aspx is a post that describes what I want to do. I surveyed the back of curb and the flange line of the curb. I want to copy parallel (offset) these lines, which are curved, so copying them won't do, at a specific distance and change in elevation.
Copy parallel doesn't work - it changes elevations somewhat arbitrarily. I tried it to get the horizontal change, then moved the new elements up/down snapping to lines to get the vertical change, but when I check randomly along the linestring the difference in elevation differed depending on where I checked it. Unacceptable.
In the above thread someone said "We use InRoads to accomplish that task. It makes it very easy." I have Inroads. I cannot find the command. Can someone point me to it? Or suggest a method to get a true copy parallel of a curved linestring in 3D?