Looks like the 3dconnexion settings have moved to a plugin in RhinoWIP. I have not opened it for a few months but wanted to test something out. Previously the axes setup was identical to Rhino 8 but it seems to now have changed - default mouse in/out used to zoom in/out but now changes the camera Z position. I tried customizing in 3dconnexion in the macOS preference panel after adding RhinoWIP as an application, to no avail. Tried disabling/enabling the plugin and a few other basics.
Sorry if this is already a know issue; figured I’d chime in just in case!