Done.
11:30 at the doctor, certificate, 100 Baht.
12:00 walk in at DLT (no queue/appointment).
Copies of passport, yellow book, pink card.
Medical cert, old DL, eLearning QR printout.
Told to come back 13:00(!).
About 15 applicants for tests.
Colorblindness
Reaction
Depth perception
Picture taken
13:50 out with new DL.
255 Baht.
That's how it works out here.