"Lets you use the whole character graphic, instead of cutting it, and use it as if they were pictures". That describes it the better way I can get to.
*Use of an event graphic as an static graphic.
Paste it above main. The script effect works the same way as putting ! or $ at the start of the graphic, but using "%".
So, naming something %actor2525.png will make that graphic affected by the script. Easy right?