[2.0] Events

So I downloaded 2.0 today and went to make a scene behaviour and it said make a event. I dont really under events. What do they do? And how do I create a behaviour like before?

Pre-2.0, Stencyl still used events, but there were only 4 (when created, always, when drawing, collided). Those 4 are still there, but now there are other ones as well. If you just want to use the 4 original, feel free; they work exactly the same as before.