Canon PIXMA MG4200 Series On-Screen Manual page 438

event appear as thumbnails.
Note
Select Select All from the Edit menu to select all images, PDF files and videos.
People View (Images)
When you click People, the view switches to People and the images of registered people appear as
thumbnails. When you click a thumbnail, all images contained in the person will be selected.
Note
Select Select All from the Edit menu to select all people.
In Expanded display
When you click a name displayed below People, the view switches to the expanded display of People