I think that the multiple renders is a nice to have, but (I don't know if I'm missing some step), I'm not able to set the focus of the camera for each view (assuming that every fixed view has its own camera, otherwise has no sense).
these are my steps:
1) set the view I like
2) set the focus of my camera
3) save the view ("View_01")
4) move the camera to second view I like
5) set a new focus of my camera
6) save the new view ("View_02")
7) latest check to "View_01" and the focus option is "off"