How make a concecutive numbering of family instances

I’m about to make an automation of classification on family instances, the singlelevelID in CCS coding. I would like to combine the Classcode with the consectutive numbering, so a wall instance would be #AD1, #AD2 etc.

I’m aware of the difference between type parameters and instance parameters but i dont know how to solve it in dynamo.


Hi, you should reload your graph because it is not readable. You will find useful information about type and instance parameters on this page: