Hello. The pin layout is extremely inconvenient in the 14-pin package, and I would like to use unused pins as duplicates. DS says that i can connect NC pins to ground plane to improve heat dissipation. But can i connect NC pins to other pins? Let's say like in this picture? I understand, that NC means no connection to chip inside but just want make sure that anyway this NC pins providing sufficient isolation from chip inside and from each other. Thanks!