[otrs] Select stat to view

Hi, Is it possible to choose what to show of statistic? The graf is very muddled and it's hard get anything out of it. If I f.ex can choose to view New and Closed then I know how much it is to do and if I need to get more help. The actual question is: Is it possible to customize the statistic view? Best regards, Måns Åman Ps It's a wonderful application! ps