When I am assembling a part, you get the option for "in session" on the side, which I like especially if I haven't saved the part that I am trying to insert/assemble. The problem that I have is that often I have a large assembly open in a different window, so there are hundreds of parts and assemblie that are in session that I don't care about. I would like another button on the side of the open window that has active windows to only show the parts that you have open in another window, because if I am going to use the in session option, about 95% of the time I want something that is open in another window because I just created the model from scratch.
