Yes, it can. In your on TEXT event, you just do something like:
He was mentioning the code examples above.
As for your suggestion, all text and events in a channel can be relayed to a specific @window easily. You can use on MODE, on ACTION, on TEXT, on INPUT, CTCP, on NOTICE, on JOIN, on QUIT, etc. Then, just use /aline or even ECHO to put the events/text into your @window in whatever format you choose.
To me, it looks clear that the whole point is to have a /window parameter instead of messing with a script through all sorts of events (and end up not exactly copying the source window, since events don't catch everything that shows up in a window - a timer+$line method would do that, although it'd be very ugly for the event catching thing).
I think it's a good suggestion.
