u just need more effort to learn from doc/item_group.txt
db/import/item_db.txt
32000,WOE_Super_Box,Woe Super Box,18,20,,10,,,,,0xFFFFFFFF,63,2,,,,,,{ getgroupitem(IG_WOE_Super_Box); },{},{}
db/const.txt (make sure no duplicate name)
IG_WOE_Super_Box 1000
db/import/item_package.txt
// GroupID,ItemID,Rate{,Amount,Random,isAnnounced,Duration,GUID,isBound,isNamed}
// Always obtained
IG_WOE_Super_Box,7135,1,50,0 // 50x Fire_Bottle
IG_WOE_Super_Box,7136,1,50,0 // 50x Acid_Bottle
// Random group 1
IG_WOE_Super_Box,11500,400,10,1 // 10x Light_Yellow_Pot
IG_WOE_Super_Box,11501,300,10,1 // 10x Light_White_Pot
IG_WOE_Super_Box,11502,200,10,1 // 10x Light_Blue_Pot
IG_WOE_Super_Box,11503,150,5,1 // 5x Siege_White_Potion
IG_WOE_Super_Box,11504,150,5,1 // 5x Siege_Blue_Potion
// Random group 2 with rental
IG_WOE_Super_Box,658,80,1,2 // 10x Union_Of_Tribe
IG_WOE_Super_Box,1293,10,1,2,120 // 10x Velum_Jamadhar
IG_WOE_Super_Box,1294,10,1,2,120 // 10x Velum_Scare