I have posted XGoFlight 3.0 Alpha 1, which adds support for the MESM and the SECM modules. This release also shifts from a profile-based EFIS configuration to a command and dataref based configuration, and contains several performance improvements and bug fixes. I still have some more work to do on documentation, but below are several links that will help get you setup.
NOTE: This is a development release. It is not stable and requires further testing, which is why I want to get it out there. The development release is strictly Windows-based, but rest assured, the final release will include the Mac and Linux versions.