Escapekey to enter outline editing
Escapekey again to exit outline editing mode
Returnto create a new item and exit outline editing mode.
LeftKey Collapse expanded rows
RightKey Expand collapsed rows
UpKey Move up by row
DownKey Move down by row
Command-Return) Insert a new row
Option-Command-G) Inserts a new row above the selection. And then moves the selection into that new row.