With regards to the EFB 'home' button issue on Xbox, please see our post here: https://community.justflight.com/post/27883
With regards to the nose wheel steering issue on Xbox, please see our post here for a temporary workaround: https://community.justflight.com/post/27881
With regards to the doors, we aren't aware of an issue with the doors in the latest version of the 146 on Xbox. Note, that the AIRSTAIRS do require yellow system hydraulic pressure to retract and the FWD PAX door cannot be closed unless the airstairs are retracted. The MAIN CARGO door requires yellow system hydraulic pressure to open/close. The yellow hydraulic system can be pressurised when on the ground by switching on the AC Pump on the overhead panel.
With regards to the weather radar being disabled on Xbox this is intentional, please see our post here: https://community.justflight.com/post/27806
The 'Modern' FMS option being blank is a known issue with v0.2.0 build on Xbox and should be fixed in the next update which has already been uploaded to the Marketplace. The release timeframe is in the hands of the marketplace team, but we hope the release should be this Thursday during the next marketplace update. In the mean time, the 'Classic' FMS option remains available via the EFB.
Mark - Just Flight