Welcome to the club
Most of these are mentioned in this thread itself.
For the sake of comparison with the US model, please find below the Picture settings I can see on my 42 LH90
Aspect Ratio (4:3, 16:9, Just Scan, Original, 14:9, Zoom, Cinema Zoom)
Energy Saving (Off, Auto, Minimum, Medium, Maximum, Screen Off)
Picture Mode (Intelligent sensor, Vivid, Standard, Natural, Cinema, Sport, Game, expert1, expert2)
Backlight (0 to 100)
Contrast (0 to 100)
Brightness (0 to 100)
H Sharpness (0 to 100)
V Sharpness (0 to 100)
Colour (0 to 100)
Tint (50R to 50G)
LED Local Dimming (On or Off)
Colur Temperature (Cool, Medium, Warm)
Dynamic Contrast (Off, Low, Medium, High)
Dynamic Colour (Off, Low, High)
Nose Reduction (Off, Low, Medium, High)
Gamma (Off, Low, Medium, High)
Black Level(Off, Low, Medium, High)
Eye Care (off, On)
Real Cinema (Off, On)
TruMotion (Off, Low, High)
Colour Standard (SD, HD)
Colour Gamut (Standard, wide)
Edge Enhancer (Off, Low, High)
Colur Filter (Off, red, Green, Blue)
White Balance (Cool, Medium, Warm)
Red Contrast (-50 to 50)
Green Contrast (-50 to 50)
Blue Contrast (-50 to 50)
Red Brightness (-50 to 50)
Blue Brightness (-50 to 50)
Green Brightness (-50 to 50)
Red Colour (-50 to 50)
Red Tint (-50 to 50)
Green Colour (-50 to 50)
Green Tint (-50 to 50)
Blue Colour (-50 to 50)
Blue Tint (-50 to 50)
Yellow Colour (-50 to 50)
Yellow Tint (-50 to 50)
Cyan Colour (-50 to 50)
Cyan Tint (-50 to 50)
Magenta Colour (-50 to 50)
Magenta Tint (-50 to 50)
If someone can point out anything missing I can try to search for it.
The above are for the picture mode, can share other things if required.