Add a new table to the document
Add a new comment to the document
Add a new field to the currently selected table.
Add a new Index to the currently selected table.
Add a new Constraint to the currently selected table.
Add a new Foreign Key object to the currently selected table.
Foreign key objects are distinct from field level foreign keys
Add a new Canvas Area to the document
Select the previous object in the document.
Select the next object in the document.
Opens the inspector and inspects the current object.
Arrange the objects in the document, attempting to remove overlaps and minimize the space used