Create new Object Types

In the left-hand pane, select the model to which you want to add a new Object Type.

Note: do not select "Models"; select an actual model beneath this. Also, make sure you do not select any of the Object Types within the model.
Click File > New Object Type.
Type a Name for the Object Type (the Name is what users will see in the model).
Type a Plural Name for the Object Type.

Note: as soon as you select this field, the plural name defaults to the same as the display name (step 3). If you want make sure that the plural is a true plural, then edit this field with the appropriate plural form (e.g. Process would become Processes).
Type a Script Name for the Object Type. This what is used to identify the Object Type internally and cannot be subsequently edited.

Note: as soon as you select this field, the script name defaults to the same as the display name (step 3). You can, however, edit this name. It must be a unique and use only alphanumeric characters.
If you want to use this Object Type on diagrams, then choose the Display on diagram box.
To add your own help for this Object Type, choose the Help tab and enter your text.

The help text you enter is what the users will see when they click the Help button on the properties dialog of any instances of the Object Type.
For more information about creating your own help, see:

Create custom help

If you want to create a new object on your diagram which is not represented by any of the predefined Corporate Modeler Object Types (i.e. it cannot easily be described as being a Process, an Entity, etc.), you must define your own design object to use as the basis of these new modeling objects on your diagrams.

Tip: Before you create a new Object Type, check that an appropriate Object Type does not already exist. The presence of multiple, inconsistently named Object Types will confuse your users.