We can find the source code for some of the Display All objects from transaction code SE38, using Utilities –> Environment Analysis.
We an also look at the object hierarchy by clicking on “Display Object List” , while looking at the source code. There are various tables that cross-reference components. These can be found by tracing a where-used, for example. If we want to reproduce these in our own SAP ABAP code, we have to spend a lot of time in debug, finding out exactly when the standard SAP code is called, and how it is called.