Use this command to merge corridor regions along the same baseline.
If you want to merge two or more regions into one region, use the Merge Corridor Regions command.
You can only merge corridor regions that are consecutive and along the same baseline. Autodesk Civil 3D prevents you from selecting regions that are not consecutive.
You can merge two consecutive regions along the same baseline that have a gap between them; however, when you merge them, the gap will be filled.
The selected region is highlighted gray.
When you merge corridor regions, the new region keeps the region name of the first region.