A custom subassembly built using Subassembly Composer can be just what the doctor ordered in many corridor design situations. Sometimes however, a phased approach is needed to tackle a tricky subassembly. Being able to iterate between the cycles of building the subassembly and testing at various levels of completion can be very beneficial and time saving. In other cases, edits have to be made after a corridor is created for the simple reason of correcting a mistake.
Check out the video below to see one workflow that will allow you to preserve the integrity of the existing corridor and eliminate the need for large edits to the existing assembly.