Engineering Change Management and Standard Composition

Can anyone tell me which Object Type I need to select in
CC02 (Engineering Change Management) so I can record changes to a Specification
Standard Composition?

In CC02 I have selected Object Types Specification, Phrase, Dangerous
Goods and Hazard Substances but these do not register changes to the
Composition.

Will I need to create a new Object Type or is there a SAP
Standard one available?

Regards

Franc