Glad you like it! I don’t know if you are a fan of ILS Landing, but we have implemented ILS NAV and AWLS modes (all weather landing system with autothrottle). The landing speed is automatically self-calculated with respect to the current weight by interpolation with respect to the real graphs:
Basically, if you are carrying for example 45000lbs of GW, the FMC will set the landing speed at approximately 164 knots. You can see the video here.