Astrobox MakerFarm Connection Help Please

Running Astrobox on a Pi 3. Compatibility list says MakerFarm is supported and verified. But it is not listed as a profile printer to choose from.

Also it sees the USB controller but will not connect. Have tried all the buad rates and different USB cables. No joy.

Running latest firmware for Astrobox. Printer a MakerFarm Prusa i3v. Its a reprap with a RUMBA - ATMega2560 controller.