Select main display in Ubuntu?

Question

AMD

There is a laptop with a video card from Radeon on Ubuntu 10.10 (proprietary firewood is installed, which the OS offered) and a monitor that is connected to the laptop.
The main display is the laptop screen.
How to make the main monitor?
Preferably without editing configs :)

Answer 1

Do this:
System -> Settings -> Monitors
There will be two monitors on the screen, the main one on the left, the external one on the right. Then take the second monitor with the mouse and drag it under the first, and then put it to the left of the first.
I checked it myself, the monics changed places and the main one became external.

Answer 2

And to make the main one on the right means it is impossible? What an inconvenience!