jeewc3d.blogspot.com
https://knowledge.autodesk.com/suppor...
In this exercise, you will examine the offset alignment editing tools.
The geometry editing tools that are available for an offset alignment depend on whether the alignment is static or dynamic. If the offset alignment is dynamically linked to the parent centerline alignment, then you cannot edit the offset alignment geometry. If the offset alignment is static, then you can use the tools on the Alignment Layout Tools toolbar.
An Offset Parameters tab is available in the Alignment Properties dialog box. From this location, you can change parameters such as nominal offset value and start and end stations.