How to use standard classes to create custom modulepool program like ME21N

I am at the Starting Point of doing a classical dynpro program via Abap Objects which address all controls with MVC Architecture .So i debugged the standard ME21n transaction to find out how i can start with. I came across this interface which has no Attributes and Methods.I wondered y .Thats y i posted a Question .I also seen a lot of Standard classes
CL_TABLE_VIEW_MM
CL_BASIC_MODEL_VIEW_MM
CL_COMPOSITE_SCREEN_VIEW_MM
CL_SCREEN_VIEW_MM
CL_TABLE_VIEW_MM
CL_TABSTRIP_VIEW_MM
CL_TC_BUTTON_VIEW_MM
CL_TC_ITEM_VIEW_MM
CL_TOGGLE_VIEW_MM
CL_VALUE_MODEL_VIEW_MM
and much more for Model and Controllers ..Can u plz guide me how i can make use of this classes effictively in my custom module pool programming

I think all these classes serve the purpose of embracing the basic ones and are used specificalty in MM module.
If you want to create similar module pool program with nice expand/collapse buttons in relation to subscreens please refer the some tips [here|expand/collapse button functionality on module pool screen;
Also there are transactions like BIBS, DWDM which you can follow the examples from. I think SAP has covered all GUI controlls there so you can create really complex programs with various GUI controlls independently of module used for.
Of course you can still stick to classes you mentioned but I think the better is to learn some standard approach of creating such screens, then if you feel more advanced go for using module specific ones if you really need that.
Regards
Marcin

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How to use standard classes to create custom modulepool program like ME21N

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