Image Viewer > Advanced Viewing > Survey/Explode

Recall from the section on laying out images that the viewer contains image boxes, which is what a display set is assigned to, and tiles, which is what individual images in a display set are assigned to. When viewing a display set "tiled" (e.g. more than one tile in an image box), you can quickly switch to a 1x1 tile layout and then back to the "tiled" layout with 2 simple double-clicks.

Here, a display set is being viewed in a tiled layout:

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A double-click will explode the selected image into a 1x1 tile layout:

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You can stack through and review a few images if you like, and a subsequent double-click on the selected image will "unexplode" and go back to the tiled layout.

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Note that you must first set the tile layout to be something other than 1x1 before you can explode tiles.