AS2 array question

I have a grid of movie clips onstage, called boxA1_mc, boxA2_mc, etc, through box G12_mc. I’d like to write one function to operate all of these using an array. My knowledge of arrays is limited to things like “attachMovie”, where movie clips are named and loaded dynamically.
Where I’m stumped is how to use an array to, e.g., write one function to operate all these mc’s once they’re already named and onstage.
Any help appreciated!