Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/SlotHandle.java
{
		if ( content == null )
			return;
		add( content.getElement( ) );
	}
	/**
	 * Adds a report item to the slot at the given position. The item must not
	 * be newly created and not yet added to the design.
	 * 
	 * @param content
	 *            handle to 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
	 */
	public void add( DesignElementHandle content, int newPos )
			throws ContentException, NameException
	{
		if ( content == null )
			return;
		add( content.getElement( ), newPos );
	}
	/**
	 * Adds a report item to the slot. The item must not be newly created and
	 * not yet added to the design.
	 * 
	 * @param content