I am just trying to figure out my new SB800. I am trying to use it in manual mode. When it is attached to the camera, I can see on the flash LCD screen that when I power down the flash tells me what my range/distance of flash to subject should be. I.E. at M(anual) 1/4 power & ISO200 @95mm F5.3 - flash should be 23ft from subject.
However, when I set it up off camera I don't see this "guide". I set it up in commander mode in the camera (CSM e2). And then I set the flash to Remote. At this point the flash LCD screen only shows "Remote".
As I understand, I then have to set the power of the remote flash in camera - but without the same distance guide that the flash LCD gives me when it is connected.
Going from memory here, but, I don't believe you're missing anything. I think that's just the way they work.
It could be said, ,that's what you have an LCD on the back of the camera for.