Shortcut for switching between Clips-Notes-Controllers

Hi there:)
 
I know that with "+/=" I can swith between Clips and the last Controllers I worked on, but is there a Shortcut to switch between Clips, Notes and Controllers??
 
Especially to work with Inside PRV it would be nice to not must use the Mouse to switch to....
 
Can't find any Shortcut, perhaps there is none.
 
thanks a lot,
Bassman.