Extra Categories tool is integrated into Xafari platform to optimize user experience while working with a List View. If a number of rows of the current ListView refer to one record in another table, it's often necessary to use that external record as a filter. This operation can be done quickly using Extra Categories.
Extra Categories is a floating panel which shows the records referred in the strings of the main List View. The object selected in the categories' panel is used as a filter for the main List View.