To create a connection between the tables you need to:

- open the tables folder from the navigation menu

- click on the Keys link
- click on this icon 
  

 

You will then open, the form to create the key (see below).

At this point you need to:

- enter the name of the Foreign Key;

- select the Primary Key table;

- select the Primary Key column or columns;

- select the Foreign Key table;

- select the Foreign Key column or columns;

- click on the Create button

N.B. It is possible to click on this icon   from the key list to set or edit the Primary Key of the table.