Suppose if I get 3 backlogs in sem 6 in may 2011. Tried to clear it in dec 2011 but no change. Tried again in may 2012 and cleared all 3. Now my new marks will be shown with old passed marks with "+" sign to show carried away marks. Is there any need to show that I attempted in dec 2011, since there is absolutely no change. Is it possible to hide it?