Inherits from
This option specifies a list of tables from which the new table automatically inherits all columns. Use of inheritance creates a persistent relationship between the new child table and its parent table(s). Schema modifications to the parent(s) normally propagate to children as well, and by default the data of the child table is included in scans of the parent(s).

To set the new table to be inherited from one or several existing tables, just simply click to open the editor(s) for editing.

Select the table(s) from the list. To remove the tables, uncheck them in the same way. You can also use the arrow buttons to change the table(s) order.

Has Oids
Check this option if you want to specify whether rows of the new table should have OIDs (object identifiers) assigned to them.