Duplicate Sharing members

Hello,
I have a FileA manually shared to 30 members from different external companies.
Now I need to create an new FileB, and share it to the same members.

Is there a way to easily do that, without :

  1. open the Share dialog from FileA
  2. rollover each individual name icon
  3. somehow type the email address manually to a notepad
  4. open the Share dialog for FileB
  5. paste the the typed email adresses, and set the edit / view setting manually

That seem indredibly awful, i hope i’m missing something obvious there…
Thanks