Configuring oXygen to write and run XSLT 3.0 (Mac version)

Very short video showing how to configure oXygen (version 22.1 on Mac OS Catalina) to set up opening a XSLT 3.0 stylesheet; prepare the three-panel XSLT Debugger view; configure options for identifying/saving your XML file, XSLT and output files, and choose the processor (ideally Saxon-EE or Saxon-PE) for running the XSLT. (There is no significant difference between the Windows and Mac setup.)