I installed the latest driver from the Steinberg site in order to use my MIDEX8 and it works fine.
But unfortunately in my DAW (Ableton 9) only 5 MIDI Outputs are listed.
What can I do to get all 8 MIDI Outs available - see screenshot
Thank you!!!
What about scrolling down the list to make outputs 6 to 8 appear?
Hey there - your name fits perfectly to ma post:
I am certainly old but dont appear any any wiser after 25 years making music 
I thought about deleting my post but decided to leave it here as a reminder of my own stupidity!
Thank you for your reply!!!
And that, my friend, is true wisdom! 
But as well, it might be useful to know that in Windows, in Device Manager, under “Sound, video and game controllers”, you’ll find the device “Steinberg Midex 8 USB Midi Driver”. If you right-click that and select Properties, on the Settings tab you can also enable or disable individual ports system-wide. This can be useful to disable ports that you don’t have connected – they won’t show up in applications such as Cubase, and possibly make for a less cluttered setup. You just have to remember where this setting is if you ever need to re-enable them!