As a follow on to the earlier navigation post, here's another handy little navigation technique. When you are logged to the e3270ui, from whatever panel you are looking at if you press F9 some navigation push buttons will appear at the bottom of the panel.
Here's an example (see below). I'm on the main KOBSTART panel. I have just pressed F9, and now navigation push buttons have appeared at the bottom of the screen. To navigate, position the cursor on the button, and press enter. This should work from any panel in e3270ui.