In different cases the flow trough the pipes changes its direction. With pipe properties it is possible to change start/end flow configuration and to avoid negative signs (minuses).
It is useful for color coding for flow rates.
But for another scenario the minus signs appear again, which is normal. Then color coding give nonsense results, because of negative signs. For example -100 L/s which I have to be "red", becomes blue, because
flow rate is "very small".
Is it possible to change node direction in alternatives and where, if it is? And if it is not, is there another way to have correct color coding?