Sorry for the lack of clarity in my previous post.
When screen rotation is on, you can rotate galaxy note2 to get a bigger keyboard (landscape/widescreen mode).
While when screen rotation is off, keyboard will only appears in portrait mode, which is small and sucked so badly.
I just wanted the keyboard to appear in horizontal/landscape as default.
Just like when you launch most of the gaming apps in galaxy note 2 which will run in landscape mode as default (even when screen rotation is off), I wanted my keyboard to be that way.
And I wanted to kept my screen rotation mode off.