Bug 156632 [Acceptance]Cannot paste theme when select Themes in Outline.
Description: Cannot paste theme when select Themes in Outline. Steps to reproduce: 1. New a library. 2. Select defaulttheme in outline and cut it 3. Select Themes and right click to paste the theme back. Expected result: Paste in context menu can be used. Actual result: Paste is gray
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
/**
	 * Moves elements. Like paste, but transfer data will be deleted.Includes
	 * transaction.
	 * 
	 * @param transferData
	 *            single or multiple transfer data, every data must be an
	 *            instance of <code>DesignElementHandle</code> or
	 *            <code>DesignElement</code>
	 * @param container
	 *            container, class type could be
	 *            <code>DesignElementHandle</code>,<code>SlotHandle</code>
	 *            or <code>ReportElementModel</code>
	 * @param position
	 *            the position will be added
	 * @return move result
	 */
	public static boolean moveHandles( Object transferData, Object container,
			int position )
	{
		return operateHandles( transferData,
				container,
				position,
				Messages.getString( "DNDUtil.trans.cut" ), TYPE_CUT ); 
	}
	/**
	 * Pastes elements. Includes transaction.
	 * 
	 * @param transferData
	 *            single or multiple transfer data, every data must be an
	 *            instance of <code>DesignElementHandle</code> or