If I change the 'Notes Page orientation' in the Notes Master from Landscape
to Portrait and vice versa, I then find that the Handout orientation has
automatically changed in the Handout Master, to match. Same happens if I
change the Handout Master - Notes Master changes to match.
Q: is it possible to select a different orientation for the Notes master and
the Handout master? I note that the Page Setup dialog box there is a 'joint'
tab for Notes, Handouts and Outline - could this be what prevents me doing
that?

Also - if I am in the Notes master or Handout master and change the SLIDE
orientation, it changes the orientation of slides in Normal view as well,
which I did not expect.
Q: is it possible to change the orientation of slides in the Notes and
Handouts master WITHOUT the slide orientation in Normal view being affected?