Dave, I have k-5 not k-30 but I think they are the same in this regard.
First, understand that the red box is not actually the focus point. It is just an indicator that shows which focus sensor is in use, the actual sensor area is much larger than the red box.
Second, I believe you are correct on older lenses, K, M, A and M42 the only focus point available is the center one.
I do not remember if this is also true in liveview however. I will test that out later and see.
Originally posted by exwintech Is there not, say for Manual Mode - a box-outline or indicator that moves the focus point Across, Down, so on - and remains visible...?
Not as far as I know, though there is something similar in Liveview.