How execute a animate only 2 times ?

Hi.

One approach would be to place a code like this in the last frame of the animation:

if (this.started)
    stop();
this.started = true;

Or, if your animation is within a Graphic symbol, you can extend it on the main timeline to last 2x its internal duration, set it to loop in the Properties panel and add a single stop in the last frame of the main timeline.

Regards,
JC