[flexcoders] modelLocator.testVO.test[i] indirection for modelLocator.testVO.test1?

[chigwell23]

modelLocator.testVO.test1 = "some string";

var i:int = 1;

modelLocator.testVO.test[i]= "some string"; // gives error undefined 

property - how does one code this kind of indirection in Flex? TIA,

Mic.