They call it Time Saver.
Here are those features:

Animate in fewer steps TIME-SAVER
Animate objects with a single click. Add motion tweens in Adobe® Flash® CS4 Professional without hand-creating keyframes or writing a line of code. This efficient new animation model means there’s never been a better time to try your hand at Flash.
Fine-tune animations fast TIME-SAVER
Quickly [...]

Get the latest Flash Player to see this player.
[Javascript required to view Flash movie, please turn it on and refresh this page]

document.getElementById(”player1″).style.display = “”;

var s1 = new SWFObject(”http://petonx-animation.com/wp-content/plugins/flv-embed/flvplayer.swf”,”player1″,”480″,”380″,”7″);
s1.addParam(”wmode”,”transparent”);
s1.addParam(”allowscriptaccess”,”always”);
s1.addParam(”allowfullscreen”,”true”);
s1.addVariable(”height”,”380″);
s1.addVariable(”width”,”480″);
s1.addVariable(”file”,”http://www.youtube.com/watch?v=LUJkqzCM3L4″);
s1.addVariable(”link”,”http://www.youtube.com/watch?v=LUJkqzCM3L4″);
s1.write(”player1″);

A very basic use of Action Script 3.0 on Buttons. This flash video tutorial is from  tutvid.
Enjoy!