When a few pictures sale marked in the album view and then Ctrl-l is pressed, the light table view of these pictures is activated. Here, 2 of the n pictures are shown, one on the left hand side, and one on the right hand side. When something on the left picture has to be done, this is easy: Just do it. On the right side, this is very different: You cannot activate the picture, neither with the mouse, nor with the Tab key. For example, in order to delete it, you have to explicitly press the tight mouse button on this picture, and then select "delete". Then, the picture is deleted, but it is replaced by an empty space. So, then there has to be another mouse press on the next picture. So there is no possibility to manage the pictures by only using the keyboard.