Stepconf parallel page does not match documentation

I'm using LinuxCNC 2.9 running under Linux Mint 21. My machine has a motherboard parallel port and I have added a second one via a pcie card. Both show up in /dev as parport0 and parport1.
On the Stepconf page for setting up the parallel port, the Parport Base Address area is different in my installation from the 2.9 docs. Here are the docs:
linuxcnc.org/docs/html/config/stepconf.h..._parallel_port_setup
see 5. Parallel Port Setup
The documentation shows a single entry for Parport Base Address, which would be 0 for a single parallel port.
My installation has two fields for Parport Base Address, please see the attached image.
What do I put in the two fields?
Thank you,
Steve 

The combo box on the right is the system found ports, selecting one of them should populate the editbox on the left.

Or you can directly edit the editbox with a port address

Thank you! No longer mysterious.