Created attachment 127922 [details]
Remove timestamp proposal

SUMMARY
I miss an option to clear a specific date field from a picture. You can do what using the metadata editor, one by one, but it is quite tedious if you need to do that to a whole folder.

For instance, let's say you scan a picture album, and the scanner software places a date in the "XMP Creation date". However, you prefer to use the "Exif original date and time field" for dating your pictures. If the two fields have different values, it can led to conflicts (e.g. not using the indended date for sorting). There should be an easy way to delete the "XMP Creation date" field in a whole picture selection. Using the "Adjust time and date" tool, you can modify those dates (so they match), but not delete them.

I currently use an exiv2 command to achieve this. For instance, to delete all XMP dates in a picture folder I run this: 

exiv2 -v -M"del Xmp.xmp.ModifyDate" -M"del Xmp.xmp.CreateDate" -M"del Xmp.xmp.MetadataDate" -M"del Xmp.exif.DateTimeOriginal" -M"del Xmp.photoshop.DateCreated" -M"del Xmp.tiff.DateTime" -M"del Xmp.video.DateTimeOriginal" -M"del Xmp.video.DateUTC" -M"del Xmp.video.ModificationDate"  *.jpg

But this is just a workaround. It would be great if it could be done from within the interface. Either in the "Adjust time and date" tool, or in the "Metadata editor". I have attached a mockup with a possible solution.