Hello Péter, I'm sorry because reading your reply, I realize my last comment mislead you.
What I meant IS:
- some CF of my CPT have the same value for all posts and I'd like to bulk change them from time to time,
- others CF have a unique value for each post of this CPT.
In that case, is the settings page still a viable option according to you?
Or would it be the solution only if all the CF of that CPT had the dame value for all posts?