In a complex assembly, I want all subassemblies 'closed' in the tree except the one I'm working on. Every time I make a change to a mate in one subassembly, several others are automatically 'opened' in the tree, making it very difficult to find what I'm working on because I now have to scroll up and down closing all the stuff I'm not interested in. Then I make another change and SW opens a whole bunch of stuff again, causing the same problem over and over.
Is there are way to tell SW not to expand any part of the component tree unless I explicitly open it myself? I've looked and asked around, but no luck so far.