Hi All,
Just an update on this in case anyone else ends up trying to interface to a Mac, due to the lack of information around this I ended up buying an old mac book from Ebay to try and move forward.
I can confirm that the Midi and Serial USB interfaces in Flowcode do indeed work on a Mac at least with the old "High Sierra" operating system I have. They didn't need any extra drivers or anything to be installed.
The serial connection seems to work fine, I could talk to a Serial Terminal Emulator in both directions no problem.
The Midi part is slightly less straight forward, and I am surmising here, but I think Windows buffers the Midi packets and insists you read each packet before it will move on (if I put a delay in the read loop I could actually slow the software down to a crawl), Mac doesn't appear to do this it just sends packets out as fast as it wants and if you can keep up and read them, then cooking, if not, hard luck you will miss some!!!!
In answer to the device manager, well Mac does sort of have something, if you press the Apple symbol in the top left and then go to "about this mac" it opens a window, click "system report" and it opens another window, select USB from the menu at the side and then scroll up and down the list that appears at the top of the page, mine appeared under the USB3 section but I think it depends on the port you use.
Anyway, hope this might help someone else.
Simon.