Creo™ Schematics 4.0 Help Center > Working with Designs > Wiring > Cables > To Add or Remove a Core or Child Cable
  
To Add or Remove a Core or Child Cable
Select the core or child cable to add or remove and click Diagramming > Modify Cores.
To add, click Add Member.
To remove, click Remove Member.
The core or child cable is added or removed.