You may also need to right-click the chart again and select Clear Local Data, this will delete your local data cache and re-download the data from your connection. This may need to be done if you don't have any extended data stored in your local cache.In order to show ETH or pre/post market trading on your chart you need to right-click the chart background and make sure Show Extended Data is enabled.
If you are still unable to see ETH or pre/post market data then you will need to make sure the instrument has an exchange assigned to it's trading hours: https://docs.motivewave.com/knowledge-base/charts/assign-trading-hours-to-an-instrument
