In examples.Sample Outline 1, position the bar cursor on the first summit and then execute:
op.insert ("", down);
op.setLineText (clock.now ())
» true
You should see the current date and time appear on the new headline you added using op.insert below the first summit and indented one level from the summit.
In examples.Sample Outline 2, position the bar cursor anywhere in the outline except on the top summit heading and then execute:
op.firstSummit ();
op.setLineText ("This is the first summit of Outline 1!")
» true