CLAY-
color: rgb(204, 125, 89)
section: solids
tooltip: "Clay, a solid form of clay dust"
properties:
USES-
I am pretty sure this is already possible! I am sure they can add new features to CLST, unless it will break saves if that's the case. Other than that I believe this has been suggested and rejected, but that doesn't mean it will be added in the future. I believe the developers want something unique and new that's fresh.
Well that goes to show I haven't expiremented with TPT since 2015. Other than that I quit playing until recently, but haven't made a save since June or July.