Hi Michael,

I'm not sure this is the reason I kepp getting problems with flow but is there a way to reverse the spline direction?

I'm trying to model a conveyor with a u shape for the single elements.
So I have the single elements arrayed along a straight line (the length of the curved conveyor shape).

now I select all the elements, click flow, click on the straight line, click on the round conveyor shape and now the u shape is turned upside down...
the segment of the elements that should be facing outside are facing the inner side of the conveyor... How can I adjust that? It worked fine that way for 2 conveyor shapes, the 3rd one suddenly makes problems.

I tried mirroring the splines of the conveyor or the line along the array but that doesn't do the job.
now I'll just try the array mirrored - but is there an easier way to refine direction for the splines if this happens?