Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/DesignElementHandle.java
DesignElement element = getElement( );
		DesignElement container = element.getContainer( );
		if ( container == null )
			throw new ContentException( element, -1,
					ContentException.DESIGN_EXCEPTION_HAS_NO_CONTAINER );
		ContentCommand cmd = new ContentCommand( module, element
				.getContainerInfo( ) );
		cmd.remove( element, true );
	}
	/**
	 * Finds the slot within this element that contains the given element.
	 * 
	 * @param content
	 *            handle to the content element to find
	 * @return The ID of the slot that contains the element, or
	 *         {@link DesignElement#NO_SLOT}if the element is not contained in
	 *         this element.
	 */
	public int findContentSlot( DesignElementHandle content )
	{
		if ( content.getContainer( ).getElement( ) == getElement( ) )
			return content.getElement( ).getContainerInfo( ).getSlotID( );
		return IDesignElementModel.NO_SLOT;
	}
	/**
	 * Returns the a handle the the container's slot that holds this element.
	 * 
	 * @return the slot handle in which this element resides, <code>null</code>
	 *         if this element has no container.
	 */