Does anyone know how to add new Attribute Definitions to an existing block?
I had hoped the BlockReference.SetAttributeByTag would work however it only updates existing tags as far as I can tell.
I have found threads online about doing it with Autocad .NET coding but its not python and I know very little about coding in any language. I have had an attempt at doing it with no success, the code is a bit of a mess of different attempts from different copied code.
Any help appreciated.
I’m using C3D 2020 and Dynamo Core 188.8.131.5294, Dyanmo C3D 184.108.40.2061 if thats of any help