Tablelist keyboard navigation

I'm using Tablelist 4.8, and I want to include simple keyboard navigation (Keypress-Up, Keypress-Down). However, I don't see how to do this in the documentation. The code below does *not* allow navigation via keyboard:

package require tablelist
tablelist::tablelist .t -columns {0 "First Column" 0 "Another column"} -stretch all -background white
pack .t
.t insert end [list "first row" "another value"]
.t insert end [list "another row" "bla bla"]

What am I missing?

--
Kevin Walzer
Code by Kevin
http://www.codebykevin.com
.