In the GR1 the back seat could not monitor the TFR. The TFR display was via a Scope just below the coaming on the left hand side of the front instrument dash. There were differences in display between RAF, German and Italian machines.
When using TFR the whole process was a crew effort. The nav would monitor what was coming up on the GMR, pylons, hills and valleys, and the pilot would then try to rationalise these as they were displayed on the TFR coming in from 8 miles. There was a constant commentary between both seats as to what was going on.
I never used the TFR to find a tanker: I always used the GMR to find the tanker when flying in the back seat.
We did use auto TFR both IMC and at night. As previously mentioned, IMC TFR was usually used in Goose Bay, where entering cloud as a 4-ball at 200' and coming out the other side after some serious turning in the correct place was always entertaining.
Regarding ALARM, the mission was planned using the desired mode: we didn't change the mode of firing in flight although it was possible.