An ADN partner had once, contacted us asking about how to create a new TextNoteType in a Revit document using the API.
To create a new TextNoteType, we can access one the of types of an existing TextNote and then use the TextNoteType.Duplicate() method to create a new type by specifying a name for this new type. Following this, we have to set the parameters of this new type, as was desired for the new TextNoteType.