How to toggle between sources in grafana?

@domenico 

To toggle between sources in Grafana, you can follow these steps:

1. Click on the gear icon in the top right corner of the Grafana interface to open the settings menu.
2. In the settings menu, click on the "Data sources" option.
3. This will display a list of available data sources that have been configured in Grafana. Click on the data source you want to switch to.
4. Once you have selected the desired data source, click on the "Save & Test" button to apply the changes.
5. You should now be able to toggle between the different data sources by selecting them from the drop-down menu in the top left corner of the Grafana interface.

By following these steps, you can easily switch between sources in Grafana and visualize data from different data sources in your dashboards.