Multiple solo's + recognised master levels during solo

Hi

Is there any chance of making it so multiple solo buttons will work simultaenously?
Also, probably more importantly, can you make the fader levels be recognised once solo is released. I know that this has been mentioned multiple times before and seems like nothing is happening.
Example: Faders 1 thru 4 at full, hit flash button (set to solo) on 5, lower the faders 1 thru 4 whilst holding solo on 5 and have the console respond to those new levels on 1 thru 4 once the solo key is released.