Having a hard time finding info on mapping the controller for Canon EF lenses and a Red DMSC2. I understand that with the controller I should be able to control focus, iris, zoom. I've downloaded the user guide from the Freefly website but haven't had any luck with the EF lenses and I can't find any info at all on the Red. I have the Red serial cable and the on/off works but no camera settings control. Is another cable necessary? Is there a You Tube on it?