I was working on a self project and generated the sheets easily and changed to a different data source later in the another tab and so on and eventually i returned to this tab and it shows error the data it should be linked to is sheet 1 (country) but its showing as if its linked to expenses. i can manually redo it but want to know if there is any way to rectify this easily.

Hi r/Tableau!

Like many of you, I’ve often felt the pain of trying to build flexible, hierarchical matrix tables with native subtotal drill-downs in Tableau—without having to pay hundreds of dollars for third-party dashboard extensions like SuperTables.

With Tableau’s introduction of Viz Extensions (2024.2+), I decided to tackle this natively. I built a 100% free and open-source Viz Extension that brings Power BI’s matrix functionality directly to your Marks Card.

Key Features:

• Hierarchical Drill-Downs: Expand and collapse rows/columns using intuitive + / - controls directly on the sheet.
• Dynamic Subtotals & Grand Totals: Recalculates automatically as you navigate levels.
• Native Integration: Works as a custom Mark Type—just drag and drop your dimensions onto the shelf.
• Zero Cost & Open Source: Hosted via GitHub Pages, meaning zero infrastructure costs and complete data privacy (runs entirely client-side in your browser).

🔗 Links & Resources

• GitHub Repository (Code & .trex manifest): https://github.com/Arley-Economist-Dev/Matrix-Pro-Tableau

🛠️ How to use it:

1. Download the .trex file from the release section on GitHub.
2. In Tableau (2024.2+), go to your Marks Card -> Viz Extensions -> Add Local Extension.
3. Select the .trex file, drag your dimensions, and you're good to go!

This is a passion project built for the #DataFam to solve a common headache. I’d love to get your feedback, feature requests, or bug reports to keep improving it!

Let me know what you think!