Hi Just watching the stream of HS2 and noticed the SDO system is slightly wrong as in Eastcoastway The panel has 3 buttons SDO Release All Release Door Release and a light for doors open (shows driver if doors are opened when wondering why interlock won't engage when taking power) The system is a double press confirmation function Currently - SDO and all release open all doors To get SDO you press the doors release button in reality (from a 170 of which I'm a guard) SDO + Doors release operates SDO system All release + Doors release opens all doors Door release on it's own doesn't do anything as its the confirmation button. Now I know you can't press 2 buttons at once in the sim so if the function of the SDO and 'doors release' buttons got swapped over it would be much closer to how the doors operate Hope this can find its way into an update as I have seen it reported before as a bug