I like the Zoom undo myself, quick for zooming back to the previous zooms or several. If you want to go way back after several zooms, just go to the toolbar and the UNDO drop down area and select the point at which you want to go to, easy peasy. Also, as mentioned in my previous post, type UNDO to the command line and choose the down arrow for options. Maybe, if people read the Help File (or press F1).