Click the Home | New | Borehole View command, click the button, right click in the View Manager and choose New Borehole View, or press CTRL+B on the keyboard to add a new borehole view in the existing project.
When a new borehole view is created, the new borehole view is not based upon existing borehole view settings. It is essentially a blank canvas to which objects must be added and appropriate data associated to the objects.
Home Tab Commands
New Map View
New Cross Section View