USER Extras Manager
How to reach it
In Games & Emulation Main Screen open the context menu of the image viewer (top right corner, right click) and choose the Open USER Extras Manager menu item.
How it works
Here you can manage your extras (screnshots, boxshots etc.).
Use the Move Up and Move Down buttons to re-order the images.
Untick the checkboxes to remove (delete) images. Warning: the actual files will be deleted!
Change the image category by using the dropdown in the left list:
Click the image to open the Edit Image dialog.
Use the Add Image menu to either add an image from a file or from your clipboard.