Use the Duplicate Selected item to create a new Boundary entity which contains only the selected curves from the active Boundary.
To copy selected Boundary segments to a new Boundary:
- Ensure the curves you want to copy belong to the active Boundary.
- Press and hold the Shift key then graphically select the curves you want to copy.
- Click Boundary tab > Active panel > Duplicate > Duplicate Selected.
A new Boundary containing the selected curves is added to the explorer. It has the same name as the original with _1 appended to it