unlocking the blacksmith table seems to unlock ALL materials like wood, plaster etc throughout the blacksmith table itsself. Is it possible to tweak it so that the different materials unlock at a different level?

I noticed it in saddle desk too... can the unlock levels INSIDE a table be edited? And is it possible to add engram costs to them? If i got it right, with this mod i can disable all SE Structures like thatch or wood as well as saddles completely in the engram list an dget these through the desks?