neo-blessed/test/widget-insert.js

var blessed = require('blessed');

var screen = blessed.screen({
  tput: true
});

var box = blessed.box({
  parent: screen,
  align: 'center',
  bg: 'blue',
  height: 5,
  top: 'center',
  left: 0,
  content: 'line 1',
  //valign: 'middle'
});

screen.render();

box.insertBottom('line 2');
box.insertTop('line 0');

screen.render();

setTimeout(function() {
  box.deleteTop();
  screen.render();
}, 2000);

screen.key('q', function() {
  process.exit(0);
});