Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/ContainerContext.java
SlotDefn slotDefn = (SlotDefn) defn.getSlot( containerSlotID );
		if ( slotDefn == null )
		{
			return null;
		}
		String slotSelector = slotDefn.getSelector( );
		if ( StringUtil.isBlank( slotSelector ) )
		{
			return null;
		}
		
		if ( container instanceof GroupElement )
		{
			int depth = ( (GroupElement) container ).getGroupLevel( );
			if ( depth > 9 )
				depth = 9;
			return slotSelector + "-" + Integer.toString( depth );  
		}
		return slotSelector;
	}
	/**
	 * Checks
	 * 
	 * @param defn
	 * @return
	 */
	public boolean canContainInRom( IElementDefn defn )
	{
		if ( defn == null )
			return false;