You need to run through different scenarios or rehabilitation derived by using a different set of tools and to be able to compare the end results.Some further independent work on the selected object(s) could be that: This is handy if there are multiple objects displayed in the same view window, and instead of looking for the objects in the project explorer, you can quickly visually identify and select the objects that require further independent work in the new view window. The View Selection tool allows a combination of objects to be selected from the project explorer or from within the view window or from both to be viewed together in the same window.