Adding onto a line

Is there any way to tack additional text or notes onto the end of a line given you by the MUD, short of gagging the line in question, then replacing it with itself + the added text?

Specifically, what I'm trying to do is make a trigger that fires on my stats prompt and tacks additional info onto the end of the same line.

Any thoughts?

Except using a plugin to capture the packet and change it, I don't believe there is a way.