Chart view: tabs for XY, Histogram, Box Plot, KDE, Heatmap.
Tab / BackTab: Move focus (tab bar → sidebar fields)
← / →: On tab bar: switch chart type
On plot style: switch Line / Scatter / Bar
On bins/bandwidth: adjust values
↑ / ↓: Move selection in focused column list
Enter / Space: Select column or toggle options
+ / -: Adjust bins, bandwidth, or Limit Rows when focused
Limit Rows: Caps how many rows from the dataset are used to build the chart (sidebar, bottom).
? / F1: Show this help
Esc: Back to main view