Aspect Ratio and Zoom setting per channel

[brasil]

Hi,

 

I have a LCD 16:9 monitor that I use normally to see SAT channel: because many channels are 4:3, I use often zoom and aspect raio function to maximize display on my monitor.

 

But every channel has different ratio, different black border and so on: I must to change these settins for every channel.

 

It's possibile to have a different zoom and aspect ration settings for each channel?

 

Thanks in advance