Online Documentation for SQL Manager for PostgreSQL
Foreign table options
Use this tab to define options to be associated with the new foreign table or one of its columns. This tab is available for editing if the Foreign table is selected on the Table tab.
To add and delete options use the New Option and Delete Option(s) context menu items.
The allowed option names and values are specific to each foreign data wrapper and are validated using the foreign-data wrapper's validator function. Duplicate option names are not allowed (although it's OK for a table option and a column option to have the same name).