The help file is actually pretty useful.
Also the samples demonstrate alot of things well. Other than that the only tutorial site (the one I ran) is no longer. This board is your best bet, do a search of this forum and you will find many examples by myself and others still available online.
As to clones:
to make a clone of an element you just
myclonetomake=element.clone()
to set properties of the clone
myclonetomake.x=10 etc.
The best thing to do when doing more than one clone of an element is to make an array of clones that way you can reference them in a loop.
PHP Code:
ball=element("paint 10")
balls=new Array
for (x=0;x<10;x++){
balls[x]=ball.clone()
}
this makes an array of 10 balls you can then reference them in loop or individually like balls[0] etc.