Keyboard shortcuts - complete list

Button	Action
`↑`	Select the previous update in the list
`↓`	Select next update in the list

Inbox — Rating

Button	Action
`→`	Move current update to the Saved folder
`←`	Move current update to the Discarded folder

Button	Action
`↑`	Select previous report in the list
`↓`	Select next report in the list
`Entf`	Delete current report (with confirmation)

Keyboard shortcuts are active when the list is in focus. Click once on an item in the list to set the focus there before navigating with the keys.