Replace Standard Class with Custom Class

Hi,
I have a query that i need to do changes in Standard Class, but i dont want to do changes Standardly. Is there any other way to replace the Standard Class to Custom Class.
Please Guide me so that i wont change the Standard Class but i can replace it with "Z" Class.
Thanks & Regards,
Harkesh Dang

Hi,
I think u will have to go to transaction se24 .select ur class there copy it to a Z class and then make this Z class as the superclass of this.
Not sure how this Z class will get incorporated in the framework.
Thanks and Regards
Shilpi

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