1. Thumbnail View
2. 3 columns of thumnails.
3. Place JPG with EXIF as Thumbnail #1 column and row.
4. Edit JPG's EXIF date at preview pane
5. Select thumbnail #4 below thumbnail #1
6. *You will see "Do you want to save changes" and infinite number of times if you repeatedly select these 2 thumbnails.
B5: Infinite "Do you want to save changes?"
Moderators: helmut, XnTriq, xnview