I am working on a drawing of a sub assembly. I also had a view of the main assembly to show where this sub assembly exists. there is a coworker that is working on a drawing of a different sub assembly within the same main assembly. We are having a referencing issue. When I have my drawing open that includes a view of the main assembly (which includes his sub assembly) he can only open a read only view of his drawing. So my solution was to delete the main assembly view since it is just for reference and then add it back only when I am all done with editing my drawing. When I do this it doesn't seem to get rid of the reference. He still can't open his drawing and when I check the references of my drawing it still shows the main assembly. How can I get rid of this reference if the model had already been deleted from the drawing? Or how do I confirm that all the views of the main model are gone, I cannot find it in the tree anywhere.