This function will create a quest step that updates upon crafting specified items.

AddQuestStepCraft([Quest*] quest, [int] step_num, [string] "step_description", [int] quantity, [float] chance, [string] "taskgroup_desc", [int] icon, [int] item_id1, [int] item_id2, ...)

This is the same syntax as AddQuestStepItem().

WIKI:LUA:AddQuestStepCraft()