Deej and Source selection

[VenHeelun]

I can only choose 1 source.
How can i use all souces and use the Deej to select volume with all sources active?
Now, even with Deej i must change the source manualy.
I just want to use the Deej and not use Windows for activating a source.
I thought that this would be done by Deej?

Can Deej use the digital pins of the Arduino for switching sources?
Then you could add buttons besides the volume-knobs for each source.

Where do i get the name of a specific device from?
Is this the the name listed at the right of the taskbar?