How do I define only scheduler attribues in the deploymnet descriptor, not the whole bean?

I have the following bean:

@Stateless
public class NewSessionBean {

    public void myJob() {
        System.out.println("RUN");
    }

}

and I would like to have myJob running every 10 seconds, so I have this Deployment descriptor:

<ejb-jar xmlns = "http://ift.tt/nSRXKP"
  version = "3.1"
  xmlns:xsi = "http://ift.tt/ra1lAU"
  xsi:schemaLocation = "http://ift.tt/nSRXKP
     http://ift.tt/1zK8E6E">
  <enterprise-beans>
    <session>
      <ejb-name>NewSessionBean</ejb-name>
      <ejb-class>org.test.NewSessionBean</ejb-class>
      <session-type>Stateless</session-type>
      <timer>
        <schedule>
          <second>*/10</second>
          <minute>*</minute>
          <hour>*</hour>
          <month>*</month>
          <year>*</year>
        </schedule>
        <timeout-method>
          <method-name>myJob</method-name>
       </timeout-method>
     </timer>
   </session>
 </enterprise-beans>
</ejb-jar>

And it works.

But I would like to declare only the timer in my deployment descriptor, not the whole bean so I can declare everything using annotations and parametrize the schedule.

If I remove the ejb-class or session-type my application won't load because the DD is missing this information.

Is there anyway that I can override the information for the scheduler only?

Edit: I would like to move set the parameters on the @schedule annotation to the deployment descriptor so I can change its values without needing to recompile/redeploy anything