I've been tinkering with steam locomotive .sms's again and just realized something... While I can hear the injector sounds in the cab I can't hear them in the #2 exterior view. I double checked the particular .sms's I was working with to make sure the triggers were specified correctly, no brakets messed up, etc, and all seems to be fine (triggers used being 27 / 28 and 30 / 31). Out of curiosity I dug out the original Scotsman and examining its cab / eng .sms files shows injector sounds defined in both - but in the sim they can only be heard in the cab as well.
So I guess my question is this... I've seen where some triggers don't work in all views, such as some working only inside the cab and then not working outside. Is that the case for the injector sound triggers for steam locomotives? I suspect this strongly since as an experiment I put the injector .wav name in the bell audio stream and it would play in the exterior view just fine. Or is there possibly something else going on I haven't considered?