If you are working with photo editing software like Adobe Lightroom or iPhoto you can hit a button or press a key and the software switches between display of the original image (as it has been before an edit) and the edited image. This way you can switch between both views very quickly. That is a great way to decide if you made a good edit or not.
I have been working on a model that heavily relies on sketches. My model is finished now and I want to optimize my design. For example I wanted to change the wall thickness. I had to edit the sketch, the view changes to the sketch editor and "moves" in to the edit plane. After I did my change I click on Stop Sketch. The view moves out of the edit plane back to its original "camera position" showing my edited model.
But as the "camera" is moving and the view changes I don't really can see the difference. Hitting Undo does not help as it just rolls back the action, i.e. moving back to the sketch plane.
I would love to get a key or function that let's me "visually" roll back my last action. A more advanced feature would be to use the section view type of display that shows the model before the edit (instead of just hiding it).
