If you want to undo changes to a 3D object in the Viewport, you can use the Undo feature. But what if you want to undo a change in the direction of view of the Viewport? ...
You can not use the Undo feature because this feature only applies to 3d objects that change alone. The solution, you must use the Undo View Change.
Exercise and How:
1 Open a 3DS Max file that you have
Figure 01. A 3DS Max Files
2 rotary swivel your view Perspective Viewport view by using the Arc Rotate button
Figure 02. Change Direction of View Perspective Viewport
3 If you want to return to the previous view, click the Views menu> Undo View Change. View Perspective So going back to the previous view
Figure 03. Undo View Change