Advanced
Debug Mode
Is enabled when Blender is started from command line with --debug-value 1 argument (or any non zero value) or you can set this at runtime by searching for Debug Menu and setting value in popup menu.
If Debug Mode is enabled, PCV will log more info to a console (terminal window, not Blender Info panel). In some cases even operation progress. PCV panels will also get several extra buttons to force shader rebuilding, debug options, some more panels with runtime info etc.