From the Browse Notes screen, scroll to highlight the note, then press the TRACKBALL. The note expands, showing the full text. Unfolded, focused notes are editable.
If your note is longer than the screen, use the TRACKBALL to scroll up/down the note contents. You can also use the D-PAD left/right to navigate within the text.texton the Sidekick LX.
To fold your note again, press the TRACKBALL. The note folds, showing only the first line.