How can you gather large scale existing elevation information based off of an alignment?

Currently to get existing elevations based off of the alignment I use Civil Accudraw's Station-Offset feature along with the Analyze Between Points tool. However, I was hoping for a way to automate this...
Terrain extractor interpolates their elevation by first finding the face that the point is on? How do you do Planar Interpolation?

I called Bentley and they told me that Openroads uses terrain extractor to interpolate elevations inside the triangles on a digital terrain model to create a surface, but I don't understand there method...
Survey Cells rotate when you rotate the view

In drawings with ORD generated survey points, signs for instance, we rotate the cell to the same orientation as the sign in the field. The problem is when our client rotates the view to match their sheets...
How to shift profile by constantly 20m or any other constant if horizontal alignment shifted to 20m.

1.How to shift profile by constantly 20m or any other constant if horizontal alignment shifted to 20m. 2.If profile is done and complex profile created then if horizontal alignment is going to change...
Text Favorite > Profile > Elevation Active Surface functionality

Does the Elevation Active Surface field not work or am I not doing something right? I'm using ORD Version 10.12.02.4 I have it in a Text Favorite and put in as part of an Element Annotation Group but...