Let me know if you have specific questions, but you should only need to put the sensor dimensions really, much like the other Interchangeable Lens Camera systems that are listed already.
Which reminds me that I need to put my Fujifilm X-T2 in there, as well as our Rolling Shutter Correction database (don’t forget to add your camera there too!)
No, but the lens calibration coefficients and therefore the lens model, have a much higher chance of being determined properly if the sensor dimensions are known.