The IS_A Relationship popup menu contains the following commands:
Connect enables you to connect an Entity with a Relationship or with an IS_A Relationship, or vice versa. Small circles represent the position of the points. If you click on a space, the new point will be an intermediate point. A Connection can have a maximum of 30 points. To complete the Connection, click on the icon where the Connection is to end. If prompting is switched "on" for Connections, you are asked for the type, cardinality and rolename of the Connection. If you do not alter a field which contains a default value then the default value is assigned.If prompting is switched "off" for Connections you can add this information later, using the Alter command from the Connection pop-up menu.
Resize
Small. The icon is changed to the "small" size.
Medium. The icon is changed to the "medium" size.
Large. The icon is changed to the "large" size.
Shrink/Grow. Use the mouse to drag the icon to the required size.
Delete enables you to delete an IS_A Relationship and its Connections from the diagram. To undo the deletion, use Undo.