All Dimensions and annotations are in the Drawing Models NEVER any annotations in the models.
This is where Grammar and verbage is so important for Bentley.
What is a model and then what is a lodel.
A Model can be any 3d object.
A Model can also be a file in a dgn.
So when some are thinking about a model others are thinking about the other model.
Never place anny annotation in your 3d drawings.
Place then in the "Drawing or what we used to call Design Model" this has a reference of the BV, 3d models ext and annotate here.