Setting Location of a Stack Relative to Location of Another Stack

[Steven Axtell]

Is there a way to set the location of a stack relative the location of another stack?  I know the following code is not correct (Rev applied it but did nothing with it), but I'm trying to do something like this:

set the location of stack "ABC" to 20,20 from the location of stack "DEF"

Thanks,

Steve Axtell