I can add user codes for my Kwikset lock, but how do I delete or change codes?

Hi,

I have a Vera Lite controller and a couple of Kiwikset Zwave locks. I have been able to assign a set of codes with names for people to control the locks. But I don’t see a way to modify the codes or to delete codes. All I have is an “add user” button.

Any guidance?

Thanks Martin