Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/ContainerContext.java
*            the slot id
		 * @param type
		 *            the name of the element type, like "Table", "List", etc.
		 * @return <code>true</code> if the slot can contain the an element
		 *         with <code>type</code> type, otherwise <code>false</code>.
		 * 
		 * @see #canContain(int, DesignElementHandle)
		 */
		public boolean canContain( Module module, String type )
		{
			if ( type == null )
				return false;
			return canContain( module, MetaDataDictionary.getInstance( )
					.getElement( type ) );
		}
		/**
		 * Determines if the slot can contain a given element.
		 * 
		 * @param module
		 *            the module
		 * @param element
		 *            the element to insert
		 * @return a list containing exceptions.
		 */
		public final boolean canContain( Module module, DesignElement element )
		{
			if ( module != null && module.isReadOnly( ) )
				return false;
			List errors = checkContainmentContext( module, element );
			if ( !errors.isEmpty( ) )