server: page_title: 'Tutorial 2' port: 4030 data_sources: - id: voltage file: gen.csv tabs: - name: Main priority: 300 widgets: - name: Generator type: data/line_chart3 data_source: name: voltage mapping: x_axis: ts y_axis: voltage group_by: generator axis: x: legend: Time [sec] y: legend: Voltage [V] ticks: format: ".2s"