Bug 151960 Library element popup menu display is wrong.
1:Creat a libray, add a table to this libray. 2:public this library. 3:Creat a report design. 4:Open the library explore, drag the table to the layout editor. 5:Select the table row, copy the selection row. 6:Select other row, clik the right button of the mouse to popup the menu . The result:Paste action and insert copied column action is highlight.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/RowBandShiftAction.java
RowHandle sourceHandle = (RowHandle) slotHandle.get( sourceIndex );
		if ( destIndex > 0 )
			--destIndex;
		
		
		RowHandle destHandle = (RowHandle) slotHandle.get( destIndex );
		if ( isRectangleArea( sourceHandle ) && isRectangleArea( destHandle )
				&& !containsRowSpan( sourceHandle )
				&& !containsRowSpan( destHandle ) )
		{
			return true;
		}
		return false;
	}
	/**
	 * Does shift operation with the given parameters.
	 * Now only allow to shift table row in the same slot.
	 * 
	 * @param parameters
	 *            parameters needed by insert operation.
	 * @throws SemanticException
	 */
	protected void doShift( RowOperationParameters parameters )
			throws SemanticException
	{
		if ( !canShift( parameters ) )
			throw new SemanticError( adapter
				.getElementHandle( ).getElement( ), new String[]{adapter
				.getElementHandle( ).getName( )},
				SemanticError.DESIGN_EXCEPTION_ROW_SHIFT_FORBIDDEN );