Sorry to disagree, but I just checked and double checked. You can use the CLS to trigger all of the flashes in manual settings. I might set one at full one at half and another two at a quarter. The deal is that you have to set the mode for each channel on the master flash or master controller. Each group can be set individually. You just have to toggle through the menu on the master flash. There is a manual mode right there in the window. What you can't do is set the mode on the back of each flash to anything other than "remote". All the flash control comes from the master flash each off camera flash must be set to remote. Hope that helps.
Kirk
