Control-W)
Expand selection to word boundaries.Control-S)
Expand selection to sentence boundaries.Shift-Command-L)
Expand selection to paragraph boundaries.Shift-Command-B)
Expand selection to branch boundaries.Option-Command-Up)
Expand the selection up through the different boundary levels.Option-Command-Down)
Undo previous Expand Selection command.Command-Return)
This is similar to pressing Return. The difference is that it will always just insert a new row. Pressing Return will replace the selection with a newline to create the new row.Command-Shift-D)Command-Shift-K)Control-Command-Right)Control-Command-Left)Control-Command-Up)Control-Command-Down)Tab and Shift-Tabas described in Getting Started. Second you can use the above arrow key based shortcuts. Third you can use Command-] and Command-[.