Contributors: David Joslin <joslin@cs.pitt.edu>,
        Wayne Davison <trn@clari.net>,
        Mike Castle <mcastle@umr.edu>, Paul Clark <prc@sysmag.com>,
        Steven King, Software Archaeologist <king@wildebeest.cig.mot.com>

One thing you can do is to turn off the chasing of xrefs in both
the D and the X command via the -o switch.  You could even do this
via some macros (put them in your .trnmac file):

D	%(%m=t?&+o^JD:D)
X	%(%m=t?&+o^JX:X)
*D	%(%m=t?&-o^JD:)
*X	%(%m=t?&-o^JX:)

How they work:

When "D" is hit, if current mode (%m) is thread selector (t) then
do the following (&+ocontrol-jD) else do (D)

In short, if  you press "D" in thread selector, it acts as if you
had pressed the keys "&+o^JD", other wise it acts like you
pressed the "D" key by itself. The ones for "X" work analagously.
 
in pseudo code:
 
 when "D" is pressed
  if mode=thread_selector then
     pretend "&+o^JD" was hit
  else
     pretend "D" was hit

(These are in fact sideways pictures of gorillas in clown outfits in
four different states of inebriation.  The fact that they make trn do
something weird and wonderful is a particular piece of brilliance on Mr.
Davison's part  ;-) Just like in the Olden Days when your name performed
some magical sequence of operations in TECO, we can feed the smiley
dictionary to trn's macro processor and see what different smiley faces
evoke strange and useful behavior. "I didn't like to use smilies at
all," says Jethro Bodine of Beverly Hills, CA, "until I found that the
sideways grinning cheshire cat smoking a cigar smiley actually causes
trn to kill all posts mentioning Dave Rhodes.  Great work, Mr. Davison!")

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