You can use $crlf in the text to include newline, the size of the box is calculated from that automatically:

Code:
//echo -a $$?="Line #1 here $+ $crlf $+ Line #2 here"

Note that $? is a simple but quirky identifier, $input() is prefered.


Looking for a good help channel about mIRC? Check #mircscripting @ irc.swiftirc.net