GitHub user dosubot[bot] added a comment to the discussion: How does Preset.io work + building a hierarchy table and interactive calendar chart?
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The plugin maintains `collapsedRows` and `collapsedCols` state and provides toggle functions (`toggleRowKey`, `toggleColKey`, `collapseAttr`, `expandAttr`) that let you expand/collapse individual groups or entire hierarchy levels at once [[1]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-pivot-table/src/react-pivottable/TableRenderers.jsx#L240-L310). It shows plus/minus icons for the collapsed/expanded state [[2]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-pivot-table/src/PivotTableChart.tsx#L20). Beyond basic expand/collapse, the Pivot Table v2 also supports: - **Drill to Detail** — click a cell to see underlying records - **Drill By** — add additional dimensions while maintaining filters - **Cross-filtering** — click cells to filter other dashboard charts [[3]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-pivot-table/src/plugin/index.ts#L50-L54) So the Pivot Table v2 should cover your Power BI matrix-style use case. Just add multiple columns to your "Rows" control in the order of your hierarchy (Region → Country → City → Store). *** **3. Interactive Calendar Chart** The legacy calendar plugin (`@superset-ui/legacy-plugin-chart-calendar`) is still included in Superset [[4]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/legacy-plugin-chart-calendar/package.json), but it's a D3-based chart using the [cal-heatmap](https://github.com/wa0x6e/cal-heatmap) library. Key limitations: - It uses the **legacy chart API** (`useLegacyApi: true`) which predates modern interactive features [[5]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/legacy-plugin-chart-calendar/src/index.js#L42) - **No cross-filtering support** — it doesn't implement `Behavior.InteractiveChart` or emit cross-filter events [[6]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/legacy-plugin-chart-calendar/src/index.js) - It has known tooltip lifecycle bugs [[7]](https://github.com/apache/superset/issues/41583) **There is no ECharts-based calendar chart in Superset currently**, and I couldn't find evidence of SIP-113 being actively pursued. The ECharts library does support a [calendar coordinate system](https://echarts.apache.org/en/option.html#calendar), so building a custom plugin is feasible. **To build a custom interactive calendar chart plugin**, you'd follow the standard ECharts plugin structure [[8]](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/documents/f98d1530-9692-4cb8-8303-6debd258fc92): 1. Create a directory under `plugin-chart-echarts/src/Calendar/` with `index.ts`, `controlPanel.tsx`, `buildQuery.ts`, `transformProps.ts`, and `EchartsCalendar.tsx` 2. In `transformProps.ts`, use ECharts' `calendar` coordinate system to build the heatmap grid 3. Add `Behavior.InteractiveChart` to the metadata behaviors to enable cross-filtering 4. Implement click handlers with `setDataMask` to emit cross-filter events on day selection 5. Export from `plugin-chart-echarts/src/index.ts` and register in `MainPreset.js` There's a [detailed step-by-step example](https://github.com/apache/superset/discussions/41663#discussioncomment-17505333) of creating a custom ECharts plugin that walks through this exact process [[9]](https://github.com/apache/superset/discussions/41663#discussioncomment-17505333). The official docs also cover plugin creation: [Creating Visualization Plugins](https://superset.apache.org/docs/contributing/creating-viz-plugins). Hope this helps point you in the right direction! <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=reply-with-mention&utm_term=apache%2Fsuperset).* --- Docs are dead. Just use [Dosu](https://dosu.dev?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=static-docs-tagline&utm_term=apache%2Fsuperset). 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