The CAME-TV CAME-SINGLE Gimbal has hard limits built into the frame to prevent a full 180 rotation. This design protects the wires from tangling up. Most Alexmos gimbals can easily be inverted but typically the camera itself has to remain 'right-side up'. Gimbals like the DJI Ronin or Ronin-M when used in inverted mode actually flip the camera upside down. So in post editing you have to flip your video. After hammering through the software a bit, I managed to find a way to keep the camera fully inverted so I guess it is possible.
At this time I DO NOT SUGGEST attempting to tweak your CAME-SINGLE settings. If you screw up your configuration, it can be a very lengthy process to restore your system due to the new 'encoders' tab. Downloading profiles from the Internet will not guarantee that your system will be restored as 'Encoders' are calibrated individually (per gimbal). Until I find the time to create some type of tutorial on tweaking PID settings, I suggest you keep the default settings as much as possible.