JSF 1.2: How to keep request scoped managed bean alive across postbacks on same view?

Is it possible to keep a request scoped bean alive across postbacks on the same page?

The general problem is, as the bean gets trashed on end of request and recreated on every form submit, for example the booleans behind dynamically manipulated disabled, readonly and rendered get reset to their default values and cause the forms to not work as intented anymore.