insert test: from bottom to the top, top to bottom and back.

test/insert.js

@@ -0,0 +1,27 @@
+var blessed = require('blessed')
+  , program = blessed();
+
+var screen = new blessed.Screen({
+  program: program
+});
+
+var main = new blessed.Box({
+  width: screen.width,
+  height: screen.height,
+  bg: 'yellow',
+  top: 0,
+  left: 0,
+  content: 'Welcome to my program\na\nb\nc\nd\ne\nf\ng\nh'
+});
+
+screen.append(main);
+
+screen.render();
+
+screen.insertTop(1, screen.height - 3);
+//screen.insertBottom(1, screen.height - 3);
+//screen.insertBottom(1, screen.height - 3);
+
+screen.on('keypress', function(ch, key) {
+  if (key.name === 'q') return process.exit(0);
+});