SetXTitle on specific position

Hi
Is there a possible to place a title in the middle of axis?

in paw I could write:
atit ‘aaaa’ ‘bbbb’ ! 220

Can I do this with “h->SetXTitle()” or “h->GetXaxis()->SetTitle()” ?

Thanks for help
jimmij

ok, I know:
h -> GetXaxis() -> CenterTitle();