Per-Sensor Tones for Entry Chime

I have a SS3 system with siren and door sensors. What would really be nice is if I could specify a unique beep/tone to each door sensor so that I know which door was opened. 

Also, when I asked customer support, they said that the siren does not have a beep feature when a door sensor is activated. I don't know if this was a recent addition, but they need to be updated on the current features of they system.