Couple stupid AD questions?

[Flysocal]

Did the ADs have high and low beam? If so where was the switch located?

At first glance it looks like the hole in firewall is not centered with column recess in dash. obvious on a 1947-53 but less obvious on my 54 cab. I have ordered an Ididit column with swivel ball floor mount so I will be modifying my firewall to accommodate the new floor mount. Should I shift it over a couple inches?

My guess is that the dash recess was for the column shifter and the high beam switch was originally somewhere on the floor but not sure where. Ididit has a switch option for the column I could probably add but the floor switch might be nice brings back memories of the 80s