Charting schemes
A charting scheme is a collection of mappings from the properties of i2 Analyze records to the properties and attributes of Analyst's Notebook chart items. Charting schemes can affect both the appearance and the behavior of Analyst's Notebook chart items that contain i2 Analyze records.
If you want to change how item labels are constructed from record data, or to enable displaying attributes on the chart whose content comes from record data, or to provide item date and time values from record data so that users can perform analysis in timeline charts, then you need to create a charting scheme.