This may not be possible the way this plugin works - it appears as a 6 axis joystick with a few buttons, which is supported by UE4. It’s a crude way of doing it without having to modify the UE4 Editor itself. To support those other functions won’t be possible yet, unless UE4 has keyboard commands for those functions you mentioned, but that would mean customizing it through the 3DxWare properties.
I’ll look into it though - maybe more functionality was added to the editor to allow Editor commands be sent from a plugin. We’ll see! 