What are the entries in the list? Do you create new views for those?
If list items correspond to structural features of the semantic element,
then use SemanticListCompartmentEditPart. Override
#semanticChildAdded(...) method to create editparts for list items. Use
DecoratedListItemCompartmentEditPart for list items. The best view
implementation for your compartment would be SemanticListCompartment view
(it's in HEAD, but not in the build yet).
Hope this helps.