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
Returnwill replace the selection with a newline to create the new row.