Changing "node" in the harmonics settings seems to do nothing

Can someone please explain to me how to correctly change the node of a harmonic?
When I change the node there’s no change reflected in the notation (at least not in bowed instruments).

Bowed instruments don’t use the node function yet. You have to select the partial. If you want a flageolet on the sixth of the fundamental, it’s not yet possible and has to be done with changing noteheads manually.

I see. Thanks!