This did the trick : Added these lines to instanceconfig.xml (inside the <View> brackets) </Pivot> <Charts> <MaxVisibleColumns>50000</MaxVisibleColumns> <MaxVisiblePages>25000</MaxVisiblePages> <MaxVisibleRows>10000000</MaxVisibleRows> <MaxVisibleSections>50000</MaxVisibleSections>…

Thanks for your answers ! About the NULL values, Gianni Ceresa's comment did the trick, i just had to remove the "nullable" option in the physical layer, thanks ! But i still can't get the default value to be the max date. Setting a default value for the presentation variable didn't help... PS : Yep Christian, you're not…