Visual debugging provides the Visual Debug view for you to interact with your COBOL or PL/I debug session. With this view, you can visualize the stack trace, set breakpoints, and run to a selected call path. You can find more information and an example on how to enable it here:
https://www.ibm.com/support/knowledgecenter/en/SSQ2R2_14.2.0/com.ibm.debug.pdt.zpcl.doc/topics/vsintro.html
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