You can't setup two views with difference time bases, you could try the following-
1. Setup two views.
2. Connected you signal and select a suitable voltage range.
3. Set the trigger to 'repeat' click and drag the trigger diamond to the top right in one of the views.
4. Click on one of the views to select it.
5. Type in the zoom factor in toolbar (next to time/div pull down menu)
6. In the zoom overview, drag the zoom square to right hand end of the box. (click in middle of the zoom square)