Ability to have different settings for the different voices of a synthesizer

[MichelSuch]

It would be nice to have separate settings for the different voices of a synthetizer, especially for rate.
Let me take an example: I have english and french voices in my sapi 5 synth.
When using a french voice (my native language), I use a relatively high rate, but when using english, I would prefer to have it spoken slowerly.
If I set my french voice t rate70, the next time I get to the voice settings, all parameters are reset to those of the first voice encountered in the list.

[Adriani90]

I agree this would be very useful, especially when switching between different voice languages very often.