Hmmmmm.
WYSIWYG's way is the way I usually do it, but I wonder if there's a more elegant way.

The trace link is

http://www.mudcat.org/AddtoTrace.cfm?Thread_ID=xxxxxxx

The de-trace link is

http://www.mudcat.org/deletetrace.cfm?Thread_ID=xxxxxxx

You replace the "xxx" with the threadid, of course. Some Mudcat functions are set up to affect several threads or messages at the same time, but I'm not sure how they do it. I'm imagining it's just a list of threads, separated by commas. My personal page is garbaged up by over a thousand personal messages and a couple hundred traces that I never seem to get cleaned up, so I can't really tell. I'll fool with it and let you know. My first experiment failed, so it's back to the drawing board.
-Joe, Mad Scientist-