Extend array classs

I got a class extending the array. np there
when I instantiate a new object from the class I call it myArray
(var myArray:NewArray = new NewArray(); )

now what’s the fastest way to fill the new object?
All I could find is
myArray[0] = “blah”
myArray[1]= “nop”
myArray[2] = etc etc etc

Can’t do it faster?
i tried myArray[1,2,3,4]
tried new NewArray(1,2,3,4)

Or can I really extend the Array class somehow. I tried to add a shuffle method to the Array class…

help ??

thx :slight_smile: