You can run program analysis on a PL/I file while it is in edit mode. After you start the analysis, the Program Control Flow view opens with a hierarchal graph of the parts within the program file. Each node represents a callable statement, such as a program, package, or procedure. The following example shows several procedures. To navigate from one node to another, click the node in the tree. The corresponding code is visible and highlighted in the file.

Features on the taskbar provide zoom in, zoom out, and return to original size. The save feature creates a bitmap of the diagram that you specify where to save it.