The source code associated with a particular module in a program (*PGM), service program (*SRVPGM), or class file is viewable if you select a program on the Programs pane, a breakpoint on the Breakpoints pane, a monitor on the Monitors pane, or a call stack entry on the Call Stack pane.
You can view the source code by using any of the following methods:
You can also change which compiler-supplied source view the debugger uses to display a module in the Source pane. For example, if you compiled the original source file with all the pertinent options, you could choose from the original source view, a compiler listing view, or the compiler statement view. To change the source view, right-click the active Source pane, then select Change Source View.