To create a master visualization, an existing chart needs to be available in the app, as you cannot create a master visualization from scratch, unlike master dimensions or master measures:
- Ensure that you are in Edit mode and you have the sheet open in which the chart to be added as a master visualization is displayed.
- Right-click on the selected chart and click on Add to master items.
- The following dialog will pop up, which will inherit the existing chart title as the Master Item name.
- In the master visualization dialog, add a description which will give context to the measure. The description can be read ...