In the editor under the list of pins on the right there is a check box that says set internal connections. Once that is checked it will show the internal connections as ratsnest lines which you can then right click on and select delete connection.
In the editor under the list of pins on the right there is a check box that says set internal connections. Once that is checked it will show the internal connections as ratsnest lines which you can then right click on and select delete connection.