Did you read his request?
"I don't have any knowledge of scripting in mIRC, but I'm looking for a way to create or add a gap between the nicknames and the actual message in the channel and chat windows."
He wants to align text in channel and chat windows, not in @windows.
Unless you're suggesting that he completely recreate the functionality of a channel window using @windows, then no, @windows cannot be used for what he wants.
The script u postet accually did what I wanted, and worked fine with any fixed-width font
- There is, ss far as I understand, no way of fixing this for any type for font at the moment.