You can't use it in writeini but you can replace it with an wrapper:
$replace(text,$crlf,@crlf,$lf,@lf)
$replace(text,@crlf,$crlf,@lf,$lf)
Comment
Zomg
multi
line
Will look like:
[topic]
item=Zomg@crlfmulti@crlfline
with
!writeini file topic item $replace(text,$crlf,@crlf,$lf,@lf)
To extract is t again use code:
!did -a dialog item $replace($readini(file,topic,item),@crlf,$crlf,@lf,$lf)
and it looks like:
Zomg
multi
line
You may edit mta.mrc, but a next update *cough* can ruin your code.