Automating the material selection for the same model on revit using dynamo

[GavinCrump]

Duplicate topic. Stick to one please.

Changing the chemical composition of concrete in revit

Based on experience at my own firm you will be better off adding this as data to the object as revit stores material data differently for some objects such as floors vs columns. This can be done via a code which you could intersect with a table of rates using Dynamo or similar to perform QTO of carbon. If you are new to Dynamo I suggest reading dynamo primer which covers all the techniques you would need to achieve this. If this is more a Revit setup in query you will get more input via Revit …