Create a backup of your current Startup view (I'll call it "Default" in this example), then overwrite the current Startup view's settings with the new ones.
1. To do this, activate the Startup view.
2. Then tap on the diamond button and select "Add".
3. Enter the new view's name ("Default") and tap "Add" again. This will create a copy of your Startup view under the name "Default".
4. Activate the view you want to use as your new startup view.
5. Tap on the diamon button and select "Chg" (change).
6. Tap on the view named "Startup".
7. Confirm that you wish to overwrite the current Startup view's settings.
You are done, now you have a different Startup view. To return to the old one, use the same steps as describe above.