No worries, glad to help. I don’t print a lot with my machine any more, but things still come up (like I got a shop press a couple weeks ago and found a knob for the release valve so you don’t need a special tool for it … printed with no trouble and now the printer sits idle again).
Apparently the port is optional but it makes me wonder what you would do if it wasn’t installed. Luckily it was there on all three of the machines I picked up from ebay.