Seeing list of all program screens in SAP ABAP

If you want to check all Dynpros belongs to one program, you can use table D020S. D020S is known as SAP Table to store screen sources information. This is available within R/3 SAP systems depending on the version and release level.

To display or maintain this table, use T-code SM30

You can use T-code SE11 to view the fields in table D020S:

It is text table D020T with the key program = sy-repid