Issues with ibus in fedora 17

[Kalpa Welivitigoda]

Hi, I have some two issues with using ibus with fedora 17,

1) How can I change the default "<Control> Space" key combination to
change the input method. For example I want it to be changed to the
right alter key.
2) When I change the input method, it is applied to all the windows. I
want it to be applied only to the window from which I changed the
input method. How can I do this. I am using GNOME 3


-- 
Best Regards,

Kalpa Pathum Welivitigoda
http://about.me/callkalpa