Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/SlotHandle.java
*            the newly created element
	 * @throws ContentException
	 *             if the element is not allowed in the slot
	 * @throws NameException
	 *             if the element has a duplicate or illegal name
	 * 
	 * @deprecated by the method {@link #add(DesignElementHandle)}
	 */
	public void add( DesignElement content ) throws ContentException,
			NameException
	{
		if ( content == null )
			return;
		ContentCommand cmd = new ContentCommand( getModule( ),
				new ContainerContext( getElement( ), slotID ) );
		cmd.add( content );
	}
	/**
	 * Adds a report item to the slot. The item must not be newly created and
	 * not yet added to the design.
	 * 
	 * @param content
	 *            the newly created element
	 * @param newPos
	 *            the position index at which the content to be inserted.
	 * @throws ContentException
	 *             if the element is not allowed in the slot
	 * @throws NameException
	 *             if the element has a duplicate or illegal name
	 *