Changing metada while in a folder with many files

[Beholder3]

Hi,

when I come back from a session with fully manual lenses certain metadata needs to be fixed, e.g. FNumbers.
If I have a folder full with lets say 200 new pictures exiftoolGUI reloads all metadata after each edit and save, which makes the process not too much fun sometimes.

I wonder if there are one of two options to solve this:
a) reload metadata in the filelist only if explicitly requested by the user (pushing a button)
b) buffer all changes in a small temporary DB and write the changes as bulk once a certain button is pressed. I do prefer this approach. It is quite similarly implemented in GeoSetter (with very limited scope though) as reference for what I mean.