May I ask what more specifically you want to control from within FC?
Since Kinematic Character Controller requires a MonoBehaviour implementing the ICharacterController interface, this will need to be done with c#, since FlowCanvas does not create c# classes or can implement interfaces in such a way, but it can of course control existing code. As such and from my understanding of the asset, you can for example use FC to control the various methods/properties/events that the KinematicCharacterMotor component may have for example (drag and drop the component into an FC graph to list the various members). The basic setup described in regards to the interface implementation will still need to be done with a c# component however.
Gavalakis
