To rename a wire, follow the steps below. This process is the same for catenary and auxiliary wires.
Step 1: Click the 'Edit' button in the 'Wires' section of the Lineardraft toolbar
This will open the wire and structure selection window.
Step 2: Click on the wire you want to rename and click 'Edit'
Alternatively, you can select your wire from the drop-down menu. You do not need to select a structure. Clicking 'Edit' will open the 'Edit Wire' window.
Step 3: Rename your wire
Step 4: Click 'Update Wire'
This will close the 'Edit Wire' window and apply your changes.