can you open multiple piano roll views?

Hey,
 
I'm trying to change the note colors in the prv for different midi tracks,
 
also it will be nice if I can open multiple tabs in the dock area below
to open multiple piano roll views for multiple midi tracks.
 
do ya'll know some tips for how to do these sorts of things?
 
thanks.
 
 

great, thanks much :-)

thanks for telling me about this shortcut, it will be useful for sure, :-)