The Outline view displays the internal structure of an ABAP class, interface, or program that is currently opened in the ABAP source code editor.
In a tree, structuring elements like attributes, data types, methods, and so on are displayed in the order of their occurrence in the open source code-based development object.
When you select one of the structural elements, the cursor navigates to its relevant source code position. In addition, you can also filter the display in order to hide:
The Outline view is opened in the ABAP perspective by default.