Oh well I understand what you mean .... but it's difficult to provide so many options - this makes the program very complicated to use.
But I have another solution: use the interval training feature (training settings > interval training) and setup a min/ max pace so Run.GPS will only tell you when you're too slow/fast.
I'm just wondering if its possible to have two voice output frequency. What I mean is this. For the first 5 minutes of my run I want the voice output to tell me my pace every 30 secs or so.. to get my rhythm down. Then after that every 1mile tell me my status of my spoken information. Would this be possible??