Via the overview menu in Client you can reach finished orders. Here it is possible to to edit old/add new search critieras for finished orders. In the admin menu enter a name, the number of days past, and finally decide if the tick box for accessible to all users should be activated or not. Confirm choices with "Save new". Once an existing option is selected a new form will appear, and that form is customizable via Balthzars grid system. Right-click on a column header, then select "Column chooser", and in the bottom right corner a new menu will appear. Here you can add/remove new columns depending on what data you wish to see.
