How make limit for Alchemy Plus? VSRO

I need Limit the alchemy for the user to +12, What table i need EDIT?

What i can do?

Sorry for bad English

Pls Help me! and ty :)

It's not possible from what i've seen.
Just make a certain glow for anything past +12, and if anyone has it they will be punished.
;]

just close +13 ++ from refObjItem

so anyone will go from +12 to +13 will fail and will lose it