I've been going through the books I have with war-time pictures of u-boat control rooms. This is the only one I've found so far, from "U-Boats Under The Swastika":
This is a picture that the author credits to the Imperial War Museum in London. The reason that there's an RN officer at the 'scope is because this is U-570, the VIIC that was captured by the British in 1941.
Whether or not the British added the same bench to this control room that the Norwegians may or may not have added to another VIIC's zentrale, is a question I can't answer... but it seems like it would be quite a coincidence. In addition, it's my understanding that the RN left U-570 pretty much the way they found her in terms of design although I could be wrong about that.
