You don't make element in the replicator, you make it in these power node things on Abberation. And you'd be looking for the code to override crafting cost
ConfigOverrideItemCraftingCosts=(ItemClassString="PrimalItem_WeaponStoneHatchet_C",BaseCraftingResourceRequirements=((ResourceItemTypeString="PrimalItemResource_Thatch_C",BaseResourceRequirement=1.0,bCraftingRequireExactResourceType=false),(ResourceItemTypeString="PrimalItemAmmo_ArrowStone_C",BaseResourceRequirement=2.0,bCraftingRequireExactResourceType=false)))
This code overrides the cost to make a stone hatchet into 1 thatch and 2 stone arrows