An array feauture would be a really nice option if it will allow you to pass complete arrays to aliases.
It would also be a cleaner option then a temporary hash table.
Since arrays are "Sorted" i wouldn't class them the same as an hash table eventhough you can "fake" array support in mIRC by using hash tables.
A foreach structure to go with it would indeed be total sweetness.
Oh well just wait and see if suggestion #342342 makes it