Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/DesignElementHandle.java
}
				PropertyHandle propHandle = getPropertyHandle( propName );
				if ( propHandle.isLocal( ) )
					propHandle.clearValue( );
			}
		}
		catch ( SemanticException e )
		{
			stack.rollback( );
			throw e;
		}
		stack.commit( );
	}
	/**
	 * Returns <code>true</code> if this element has any locally-defined
	 * property values. Returns <code>false</code> otherwise.
	 * 
	 * @return True if the element has property values, false if not.
	 */
	public boolean hasLocalProperties( )
	{
		return getElement( ).hasLocalPropertyValues( );
	}
	/**
	 * Adds a user-defined property definition. The property definition must
	 * have a valid name and property type. The other attributes can be set
	 * either before or after adding the property to the element. The
	 * application can modify the property definition directly before adding the
	 * property to an element. However, the application must use a structure
	 * handle to modify the definition after it has been added to an element.