The History Dialog displays the list of the documents you have opened in
previous sessions. It is more complete than the list you get with the
“Open Recent” command.
The scroll bar allows you to browse all images you have opened before.
The Open the selected entry
button allows you to open the image you have selected. With "Shift" key
pressed, it raises an image hidden behind others. With "Ctrl" key
pressed, it opens the Open Image dialog.
The Remove the selected entry
button allows you to remove an image from the History dialog. The image
is removed from the recently open images list also. But the image itself
is not deleted.
The Recreate Preview
button updates preview in case of change. With "Shift" key pressed, it
acts on all previews. With "Ctrl" key pressed, previews that can't be
found out are deleted.