LibreHardwareMonitor
Unable to change sensor order
It seems to be impossible to change the sensor order in the gadget or tray icons. The order of sensors appears to be alpha-numeric upon detection but, if you rename a sensor to make more sense, the order is not updated and gadgets can easily become out of order. Example:
Note how "Chassis Fan 1" and "Chassis Fan 2" are not ordered next to each other. This is because, as far as sensor detection was concerned, one was "Fan #1" and the other was "Fan #2".
It should be possible to reorder sensors, either specifically for gadgets and tray icons or at least in the main view that affects both.
It also appears to be impossible to reset a sensor's name to default once it has been changed.