Offset 1468 did nothing for me.
But, indeed, higher values move it to the left, so I guess we've solved the overall movement thing.
I haven't been able to fully determine what does 146B do, but pretty much like 146F (vertical cam) and 1473 (zoom), seems to control "sections" within which 146A acts.
Apparently, there are only 3 legitimately possible values for this offset:
00: No horizontal movement has been done.
41: Right horizontal movement.
C1: Left horizontal movement.
I'm guessing values lower than 90-or-so are for "right" sections, and higher than that should be for the left ones.
[EDIT]
Also, some other misc data I've found:
1458: Hairstyle. Haven't checked whether it affects color or not.
145C: Bottom clothes (shorts, skirts, etc).