To move up or down a screen: use the buttons to move the highlight.
To move from panel to panel: use /
to select the tab handle at the top of the panel, then use
/
to move to a different panel.
To turn a check-box on or off: highlight it and press
.
To select from a combo-box: highlight it and press
to activate, then use
/
to select.
To operate a button: highlight it and press
.