If you want to control every aspect of the activities you are designing, you should check out the Activity Manager, accessible from Action Bar in the Editor activity.
Possible actions:
- Edit
- Delete
- Clone
- Rename
- Change screen size
- Set as Main Activity (makes it the default activity to be opened, when opening the project)
Gui2Go and Pixel density settings:
One thing you should know though... The screen size you choose may not appear to be as big (or small) as you are expecting. This is because of pixel density differences between different device screens.
That means if your tablet uses a medium density screen, and your target device has a high density screen - the editing area (on your screen) will look bigger than it really is!
It's OK though, rest assured I've taken this into account and your layouts will work fine on your target screen or on the SDK.
If you want more information on different devices and screen types, check out the Android Developers Site.