Hello Michael,
idealy it would be the user setting the arrows and telling MOI what to do, but it would also be very helpfull if there was just a "pre execting command" stage, in which one could get an idea whats going to happen when flow is going to work.
The samples in the documentation are nice, but they are quite global. If you need to be very specific (which is the case with my current project) and do not have the liberty of having some randomnes in the process of projection, the the current way how it works needs you to do a lot of try and error until you get what you want.
I continue trying, maybe its just me not getting the point ;-)
Regards
Heiner