key , action collapseSelectedRows: key . action expandSelectedRows: key ; action collapseAllExceptForGroupItems: key [leftarrow] action collapseAllExceptForGroupItems: commandModifier optionModifier key ' action expandAll: key [rightarrow] action expandAll: commandModifier optionModifier key [rightarrow] action navigateToTimeline: key [delete] action delete: key [deletefunction] action delete: