Epson 10020 - Manual (Page 161)

To add a device to the list, press 1 and then Enter. The
program displays a list of other devices that are not currently
included in the DEVICE LIST. You see a menu similar to this:
Additional DEVICE LIST
4 - Monochrome display adapter and CRT
7 - Math coprocessor (8087)
12 - Alternate serial port
0 - Exit
Enter the number of the item to add:
Type the number of the item you wish to add and press Enter.
That item then disappears from the Additional DEVICE LIST
on the screen. You can add as many devices as necessary. When
you finish adding devices, press 0 followed by Enter to return
to the Modify DEVICE LIST menu.
Note
Even if you have both monochrome and color display,
adapter cards installed, you can test only the months that is
currently selected by DIP switches 1-5 and 1-6 on the front
panel.
To remove a device from the list, press 2 and Enter. The
screen displays the current DEVICE LIST and the prompt:
Enter the number of the item to delete:
Type the number of the item you wish to delete and press
Enter. That item then disappears from the DEVICE LIST on
the screen. You can delete as many devices as necessary.
When the DEVICE LIST is correct, press 0 and then Enter.
The program returns to the Modify DEVICE LIST menu.
D-4 Performing System Diagnostics