Lockheed Martin has released a new version of Prepar3D, version 6. I have now updates my tools to support this version as well. That means you can select it as active FS version, that it will detect the installation location and that the SDK tools are also found from the Prepar3D v6 SDK.
The only disclaimer with this update is that I do not own Prepar3D v6 myself, so I have not been able to test everything. If you encounter any issues, please let me know.