Configure Display: VGA1 right of LVDS1

[Arnaud bourree]

Hello,

I'd like to setup VGA1 right of LVDS1 instead of LVDS1 left of VGA1.
You will said that the same, but I think not:
My task bar is on first display: VGA1 as it is the reference, and I
like to find it on LVDS1 whatever I've monitor connected to VGA1 or
not.
Do you known how to setup VGA1 right of LVDS1?

Regards,

Arnaud.