What Do All The Diffrent Door Unlock Buttons Do On The 377?

I saw a reply somewhere that said what the diffrent buttons do but i can't find it anymore, could anyone tell me?

 

In TSW, nothing. They are used for SDO, Selective Door Opening, which allows the driver to choose which doors will open and which not (for example on platforms shorter than the train)

This feature isn't implemented in TSW though. Neither is door release, instead of throwing them all open.

 

Thanks

 

Door Release only releases the doors on the unit you're driving the train from.

SDO and All both release all doors.