Assets Tree never preserves the history for previous use

When we add many assets to a project, it brings them up under the assets segment as a tree of items. We can use these assets from here for the project. Now it gets a little troublesome when we have many assets included in the project, and they are under many sub-tree. If QDS restarted, then all the sub-trees open up. Then it is necessary to manually close all the sub-trees and keep the one you need. 

To solve this, I think we need to keep track of previously opened or used sub-tree elements, and could just show the ones user had been working on before it was restarted. That way we can ensure less manual backtracking in the Assets tree view.