M3's Slideshow is a dual purpose tool.  It can be used be used for viewing images as well as choosing them. 

Displaying images in a Slideshow 

To add and display images in an Slideshow: 

1. Select the File>Add... menu item, select some files and exit the dialog.
2. Shadow the static image window if desired.  To do this use the window's pop-up menu item and select the Shadow.
3. Press the play button or use the forward or backward arrow buttons.

Once you have added images using the method described above, you can use the slideshow along with a Tiny Image Chooser to view and choose between the images.  To do this: 

1. Select the Misc>Tiny Image Chooser... menu item.
2. For the image show, press the Green button to keep it or Red button to delete it.   If you wish to skip the image, use the forward arrow button on the Slideshow window or choose a filename in the list on the left of that window.
3. Repeat step 2 until you have chosen all of the images.

Slideshow actions are: 

• File>Add... - Add files (or additional files) to the Slideshow list. 
• File>Clear All - Remove all files from the Slideshow. 
• File>Close - Close the Slideshow tool. 
• Edit>Shadow - Shadow the image being shown.  Once you create a shadow, any new images displayed by the Slideshow are also displayed in the Editor Window opened.
• Edit>Clone - Clone the image being shown.  Use this if you see images which you would like to keep displayed on the screen. 
• Edit>Selected>Browse... - Open an Advanced Browser displayed the selected image. 
• Edit>Selected>Remove - Remove selected image from Slideshow. 
• Edit>Selected>Delete - Remove selected image from Slideshow and delete it from the disk. 
• Misc>Tiny Image Chooser... - Open an attached Tiny Image Chooser. 
• Misc>Smart Sort - Sort images shown. 
• Misc>Sort Ascending - Sort images shown. 
• Misc>Shuffle - Shuffle the image names.
• Misc>Options... - Open the options dialog.  Using this dialog you can modify the order which the images are shown, the speed at which the playback occurs, and whether or not images are displayed more than once.