Combined outputs of tracks

Yes, that's what I meant .
Seems more convenient to me that the source track colour stays coloured as it is and the combined colour does not have to be the same colour and could be e.g. dark grey.
It's just a matter of seeing the positions of the symbols whether they are free of each other or overlap
To see all the tracks, you would have to combine them alternately
So two coloured tracks with a grey one in between, just an idea  

Is good though to get a picture of the symbol output of an arrangement how all the tracks relate to each other musically. (a good separation) 
Surely there was some mention on the forum once , that an arrangement sounded a bit undefined?
Now with this new feature, that can be better visualised.
 

That combined output of tracks is also a location to see the symbol positions , but in the phrase editor, that's where the actual correction takes place should symbols coincide.
Shouldn't you then also be able to see all symbol combinations of the tracks in the phrase editor ?

note : the zooming in phrase editor in Windows
Ctr+middle mouse button(mmb) : horizontal zooming  :ok

 Shift +mmb :  horizontal  movement  symbols  : ok

Alt + mmb : vertical zooming  ???