Anyone know how to program the 5 buttons to the right and 5 buttons to the left of the large LCD display to correspond to the extensions in my house (stations are designated as 100-111)? I can navigate through the menu to extensions and 100-105 will be shown on the right. I can then hit next and 106-110 will show. Is there a way to have 100-105 correspond to the right buttons and 105-110 correspond to those on the left? Is there a way to program the name of the individual or the room of each station?