VB Expressions in Corridor Target References

[fcernst]

I would like the ability to use VB expressions and API calls within the Target selection box in Corridors.

Some easy examples:

1. I want C3D to quickly add, say a few feet to an Offset Target within a Region.
2. I want C3D to quickly add a 0.5' differential to the Profile Target if the Profile Target initially tests within 2 feet of a certain surface.
3. I want C3D to quickly adjust the profile target if the lane slope goes beyond a certain slope. 

etc., etc, etc.