Mile

Hi all. 78 280. Trying to take it to dinner later tonight, and my headlight switch on the column is being funky. It will turn on headlights but no side markers, tails, or pod lights . I don’t think it’s the wiring, I think it is the linkage inside of the switch itself, because you used to be able to fiddle with it, switching it off and on until the rest of the lights came on. Any knowledge on how to disassemble the plastic switch part that comes off the column? Thanks