SetItemStackSize

// Sets stack size of an item. // - oItem: item to change // - nSize: new size of stack. Will be restricted to be between 1 and the //  maximum stack size for the item type. If a value less than 1 is passed it //  will set the stack to 1. If a value greater than the max is passed //  then it will set the stack to the maximum size void SetItemStackSize(object oItem, int nSize);