Sorry, I did a search on this subject and couldn't find any relevant results.

How do you edit your navi contacts, specifically the names, within your on-screen phone list? Also, how do you delete or replace contacts? I could only figure out how to add new contacts, but not how to modify existing ones.

Thanks in advance for your insight...

 

without going into detail, I am sure you can change all that under "Setting" of the Nav buttons. From there, you'll need to select from phone or nav.

The manual should be clear on this.