Steps to create associated variable
- Create grafana dashboard and add visualization
- Select the values which you want to select eg(the traditional values which are available in your datasource like: 1M,2M,3M)
- Now go to add override and add override by name and select the field name
- Now add override property of value mapping and click on add value mapping
- Now add custome value mapping and click on update.
Final Outcome: Your values are started displaying.
