Relationships graph keyboard shortcuts (Mac OS)
Use the following shortcuts to navigate, select objects, move and resize tables, and issue commands in the relationships graph.
Table and relationship selection and arrangement shortcuts
 
Move the selection around the relationships graph, individually selecting tables, notes, or relationships
Move the selection to an object that includes text beginning with specific characters
Note  If multiple objects share initial characters, you can move the selection to the next occurrence by pressing Command-G or typing the characters again.
Control-Up Arrow, Control-Down Arrow, Control-Left Arrow, Control-Right Arrow after selecting a table, or drag the selected table
Control-Shift-Up Arrow, Control-Shift-Down Arrow, Control-Shift-Left Arrow, Control-Shift-Right Arrow after selecting a fully expanded table
Note  To select by partially dragging around tables, press Command while dragging.
Toggle the display state of selected tables
(Tables can be displayed fully expanded, by table name alone, and by table name and related fields. Notes can be displayed expanded or collapsed.)
Relationships graph shortcuts
 
Note  Option-click temporarily changes to Zoom Out mode.
Note  Option-click temporarily changes to Zoom In mode.