Lab Debug

At step 3 of the Debug lab, the ? Debug Help button
is introduced. I don't see this button on the Debug 
toolbar and thus have no access to it.

At Step 4, Ctrl-T gives 

|domain error: jdb_wd
|jdb_wd[0]

At Step 7, foo is expected to be defined,
but value error is reported if the user 
inputs '2 foo 3'

On the debugger itself:

While using the debugger to trace Oleg's
sax class to parse xml text, I found 
the debugger very fragile, leading to frequent 
J crashes or unresponsive state. I can't 
report with sufficient details all my steps 
leading to a dead end. The sax class is based 
on an open source dll which works fine.

I found dbstopme extremely useful, because it 
would stop in recursive situations while 
dbstop in the J session would stop only once 
(strange?). However dbstopme put stops on every line, 
while I would rather have a stop on the next line. 
I thus tried to remove stops with the Stop dialog, 
but that particularly damaged the Debugger.
Could we have a dbstophere?

I would often like to check the result of the last
line of a verb before leaving that verb, but 
the debugger does not offer this facility.

~ Gilles
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