Online Documentation for SQL Manager for PostgreSQL
Managing foreign keys
Right-click a foreign key to display the context menu allowing you to create new, edit, drop a foreign key. Using the menu you can also export the list of the table foreign keys to any of supported formats.
The Foreign Keys list provides the following attributes of each foreign key of the table:
Foreign Key Name
For details see Foreign Keys.
If necessary, you can also use the Foreign Key Description area to supply a description for each foreign key.