CORRIDOREDIT command
Adds or removes regions for a selected corridor.
                Method
There are two methods to use CORRIDOREDIT command:
- Add regions for a selected corridor.
 - Remove regions for a selected corridor.
 
Options within the command
- Add Region
 - Allows you select a template for a selected corridor.
 
- Enter region start station
 - The starting point along the 3D alignment line.
 
- Enter region end station
 - The ending point along the 3D alignment line.
 
- Remove Region
 - Select region to remove.
 
- enter Index
 - Select index to be removed.