Shift+Ctrl+Up
Go to the previous file
Shift+Ctrl+Down
Go to the next file
Shift+Ctrl+PageUp
Go to the previous page of the file list
Shift+Ctrl+PageDown
Go to the next page of the file list
Alt+Home
Go to the latest file
Alt+End
Go to the oldest file
Alt+PageUp
Go to the next later file
Alt+PageDown
Go to the next older file