Interesting about not needing an F/E license to sit in 'the seat'.
I am thinking maybe it was a 2 day F/E 'gouge' course - in order to pass the test. Most 'real F/E's' may get their feelings hurt regarding a '2-day F/E course'..........
Years back, first job after the Navy, had to get a turbo-prop F/E ticket - only FAA written test was on the Herc or the CL-44 and I had been P-3. Very little (as in none at the time....) civil info on Herc but there was a 'Zweng Manual' (remember those???) on the CL. Did okay, but felt perhaps like your 1011 Capt. Something about 'tailpipe muffs' for anti-ice........ for me , quite 'strange'.
Imagine the 188 has something to do with the Electra.... Good ole' airplanes!