From the Desktop Library Page, once you select a group of pictures, you can:

• Star multiple pictures so you can quickly view and share any of your favorite living pictures. 

1. Right-click any of the selected pictures and choose "Star Selected Pictures." 
2. You can also use the Star icon in the lower right of the screen after selecting pictures.

TIP: All of your "starred" pictures can be viewed together at any time by clicking "Starred Pictures" in the upper left of the Desktop Library Page.

• Delete multiple pictures to save time after you're sure you don't want to keep them.

1.  Right-click any of the selected pictures and choose "Delete Selected Pictures," and confirm by clicking the green "Yes, delete!" button.

IMPORTANT: Deleting pictures is permanent. At this time, even if you still have the original picture on your Lytro camera, currently you cannot re-import a picture from the camera to the same computer after deleting it from Lytro Desktop.

From the Desktop Picture Page, displaying any individual living picture, you can:

1. Delete a picture: Click the "trash-can" icon in the lower left, and confirm by clicking the blue "Delete" button. TIP: You can also use the "delete" key on your keyboard, and confirm by hitting the "return" key.

IMPORTANT: Deleting pictures is permanent. At this time, even if you still have the original picture on your Lytro camera, currently you cannot re-import a picture from the camera to the same computer after deleting it from Lytro Desktop.

1. Rotate a picture:  Click the "rotate" icon in the lower left.  TIP: Lytro Desktop will normally automatically auto-rotate any images shot with the camera on its side or upside-down, just as such images will auto-rotate on the camera itself [may require updating the camera firmware].
2. Star a picture to mark it as a favorite. Click the "star" icon in the lower right of the screen, and a small star will appear above the picture, at the top of the screen. To change your mind, click the "star" icon in the lower right again. 

TIP: All of your "starred" pictures can be viewed together at any time by clicking "All Pictures" in the upper left and then clicking "Starred Pictures" in the upper left of the Desktop Library Page.