if you want to see the CAMotics toolpath visualisation, you got to know that although it is installed on the Onefinity Controller, it will not show up if you just attach a display to the Onefinity Controller, no matter how big it is. You will see it only if you run the Onefinity Controller application (which is a web application that runs in a web browser) from an average laptop/desktop computer remotely. This is because the Onefinity Controller on its internal Raspbian installation has not the graphics hardware acceleration drivers installed to show the 3D visualization CAMotics offers.