2 press select, Call a 1-touch dial number, Touch dialing for key 1 – Nokia 6590i User Manual

Page 122: Change 1-touch dialing numbers, 1 press names, 2 scroll to 1-touch dialing and press select, 4 scroll to change and press select, 5 enter a phone number, then press ok, 6 enter a name, then press ok, Erase 1-touch dialing numbers