Well yes, I've tried all of them. Also, not sure if that should be the case, but I don't have the TDC dials on the UZO, but only the vanilla torpedo controls. Maybe makes sense since I wouldn't have a TDC in reach, but I would probably be able to yell at a gunner below to enter the values.
Edit:
I found this code in "Page TDC.py":
def EnsureStadimeterButtonVisible( value ):
tdcison = ( GetTDCIsOn() or GetSextantActive() ) and value
When I change it to
tdcison = value
then I see the stadimeter button, but nothing happens if I click it. So I think my TDC is not on. But I have no idea how to activate the TDC. I only know how to switch between auto (following periscope) and manual. When I tried following the manual TDC tutorial, it asks you to turn on the TDC to continue, but just highlights an empty area on the screen for me, so I never managed to get past that step. I assumed the tutorial was just outdated and that the TDC is always on in the latest version of TWOS. Any ideas how to turn on the TDC?