look in merchant for the name of the npc.and locate the file name,check in both market_def and covert_def for the npc.
for example in merchant.txt on my server i have:
25EventMaster 0 160 226 (EventCoordinator)_Joseph 0 61
so look in envir folder for file 25eventmaster.txt
then in there add this script
;;不要删掉此行
[@MAIN]
#Say
_Greetings Friend, My Name is Joseph\
<Tell me about the
best/@Top10>\
<
Exit/@exit>\\
[@top10]
#ACT
HLSCRIPTCMD SERVERTOP ;This Refreshes the List
#SAY
Server Rankings\\
<[ All Top 10 ]/@AllLevels>\
<[ Top 10 Warrior ]/@WarriorLevels>\
<[ Top 10 Taoist ]/@TaoistLevels>\
<[ Top 10 Wizard ]/@WizardLevels>\
<[ Top 10 Rich Peeps ]/@TopRich>\
<[ Exit ]/@exit>\\
[@AllLevels]
#SAY
<$SERVERTOPALLLEVEL>\\
<[ Exit ]/@exit>\\
[@TaoistLevels]
#SAY
<$SERVERTOPLEVEL2>\\
<[ Exit ]/@exit>\\
[@WarriorLevels]
#SAY
<$SERVERTOPLEVEL0>\\
<[ Exit ]/@exit>\\
[@WizardLevels]
#SAY
<$SERVERTOPLEVEL1>\\
<[ Exit ]/@exit>\\
[@TopRich]
#SAY
<$SERVERTOPGOLD>\\
<[ Exit ]/@exit>\\
and it will work