求教各位大神 哪段代码控制着套装商人的存在或是消失~~~

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<STRING>BASEFILE:media/units/monsters/base.dat
<STRING>RESOURCEDIRECTORY:media/models/npcs/ponya_m
<TRANSLATE>DESCRIPTION:Seller of Armor Sets
<STRING>MESHFILE: Ponya_M
<STRING>ALIGNMENT:NEUTRAL
<STRING>UNITTYPE:MERCHANT
<FLOAT>COLLISION_RADIUS:0.800000
<FLOAT>MAXHP:250.000000
<FLOAT>MINHP:250.000000
<INTEGER>MINDAMAGE:100
<INTEGER>MERCHANTTAB:1
<FLOAT>WALKINGSPEED:0.000000
<FLOAT>RUNNINGSPEED:0.000000
<FLOAT>SCALE:1.000000
<INTEGER>RARITY:0
<TRANSLATE>DISPLAYNAME:Boon the Collector
<STRING>NPCGREET:RATLINATTACK
<STRING>NPCBYE:RATLINGRUNT
<STRING>UNIT_GUID:-3391708615579717601
<INTEGER>LEVEL:1
<INTEGER>MAXDAMAGE:125
<STRING>NAME:setmerchant
<STRING>GOLD_SOUND:GOLDPICKUP
<INTEGER>MERCHANT_LOOT_LEVEL_OFFSET_MIN:-3
<INTEGER>MERCHANT_LOOT_LEVEL_OFFSET_MAX:5
<STRING>PARTICLE_SPAWN:media/particles/events/setvenderappear.layout
<BOOL>COLLIDEABLE:false
<BOOL>OCCUPIESNODES:false
<BOOL>DAMAGEABLE:false
<BOOL>INVINCIBLE:true
<BOOL>RENDERBEHIND:false
<BOOL>ALLOWS_MERCH_UNIQUES:true
<BOOL>LOCALONLY:true
<BOOL>LEVEL_TO_PLAYER:true
<BOOL>DISABLE_WANDERING:true
<FLOAT>PLAYER_LEVEL_FOR_MERCHANT:1.000000
[INTERACT_UI]
<STRING>UIMENU:MERCHANTMENU
<STRING>UIMENU: PLAYERINVENTORYMENU
[/INTERACT_UI]
[INVENTORY]
<STRING>CONTAINER:Merchant Armors
<STRING>CONTAINER:Merchant Buy Back Bag
<STRING>CONTAINER:Merchant Weapons
<STRING>CONTAINER:MERCHANTBODY
<STRING>CONTAINER:MERCHANTITEM
<STRING>CONTAINER: Pointer
[/INVENTORY]
[TREASURE]
<STRING>SPAWNCLASS:MERCHANT_SET_INVENTORY
<INTEGER>MIN:28
<INTEGER>MAX:40

以上代码中有木有 是哪一段？？？？  求大神指点一下  怎么能把他不消失改成一段时间后消失~~~~~