instead of using a comma in {1,3} for example,
use {1 $+ $chr(44) $+ 3}
It can be a pain sometimes, but you will get used to it....
Kinda like using a %#RoomName because it has to be scripted as $chr(37) $+ #RoomName due to variables.
Why is it like this? mIRC dosnt require everything in quotes, to which most of us prefer.
Hope this helps