Sony A7R III pixel shift in RT questions


can you, guys, clarify on following topics:

  1. Does RT have 100% pixel shift support for Sony A7R III cameras?
  2. Is it possible to combine 4 raws in RT, save the resulting ORW and then import it in Darktable for further development as regular raw file? I’m asking because I’m a long time user of DT…
  3. Is it really worth while using Pixel shift with Sony A7R III for reproduction purposes in a studio?
  4. Does anybody have real life examples made in studio with RT? (without any sharpening applied of course, please)