How to ...

... add a new entity object

There are four ways to add a new entity object to the canvas.

1. Use menu option "Objects | Add entity".
   
   
   or
   
   
2. Activate the context menu by clicking the right mouse button and use menu option "Add entity".
3. Use the entity button from the toolbar.
4. Press "ALT+e" on the keyboard.

... add a new relationship object

Adding a new relationship object is a two step process:

1. Select the entities which will participate in the relationship.
2. Use menu option "Objects | Add relationship".
   
   

... add a new attribute object

You may add an attribute object to an existing entity object or an existing relationship object.

1. Select the existing object.
2. Use menu option "Objects | Add attribute".
   
   

... edit the properties of an object

1. Move the mouse cursor to the object.
2. Activate the properties dialog(s) through the context menu by pressing the right mouse button.
3. Edit the properties in the dialog.

... perform Specialization

1. Select the entity object which you want to treat as the "superclass".
2. "Superselect" the selected entity object by pressing "ALT+left mouse button".
3. Use menu option "Objects | Add isa".

... perform Generalization

1. Select the entities which will participate in the generalization as "subclasses".
2. Use menu option "Objects | Add isa".

... perform Aggregation

1. Select the relationship object which you want to treat as a higher level entity.
2. Use menu option "Objects | Add aggregation".