Do changes in the sensor list
You can always add more sensors to the end of the sensor list.
However once the first data is stored in the database,
it is not possible to change the order of the existing sensors.
To remove a sensor, you can disable it by checking the appropriate
box in the list.
You can also reuse this entry by exchanging the device.
To ensure that this is done intentionally, it is necessary to
confirm this change by checking the 'Continue current chart
with new devices' box.
Or, if you don't need the data anymore, you can restart the
chart with a blank state after deleting the old values.