Im not sure if I can explain this correctly but here goes,
What I would like to see in mIRC is a way for you to post text to yourself like the /play -t command does. Currently there is no way that I have found to do this. I think it would make scripting many Add-ons easier. Currently the Play command requires you to have a channel open and Text can not be played sent to a dialog.

EXAMPLE:
/TOPIC/
This would be line one
This would be line two

This would be next paragraph
with more lines

And so on

/Next topic/