Chrysler Repair: Headlight Adjustment on 2002 Sebring Sedan (4-door), proper tire inflation, chrysler sebring

Question
How do I adjust the Headlights on a 2002 Chrysler Sebring Sedan (4-Door). And can you please explain the "L" "R" indicator I see below what looks like one of the adjustment screws.

Thanks for your time and expertise --David

Answer
STANDARD PROCEDURE - HEADLAMP UNIT ALIGNMENT
HEADLAMP ALIGNMENT PREPARATION
Verify headlamp dimmer switch and high beam indicator operation.
Inspect and correct damaged or defective components that could interfere with proper headlamp alignment.
Verify proper tire inflation.
Clean headlamp lenses.
Verify that luggage area is not heavily loaded.
Fuel tank should be FULL. Add 2.94 kg (6.5 lbs.) of weight over the fuel tank for each estimated gallon of missing fuel.
ALIGNMENT SCREEN PREPARATION
Position vehicle on a level surface perpendicular to a flat wall 7.62 meters (25 ft.) away from front of headlamp lens (HEADLAMP ALIGNMENT SCREEN).
If necessary, tape a line on the floor 7.62 meters (25 ft.) away from and parallel to the wall.
From the ground up 1.27 meters (5 ft.), tape a line on the wall at the center line of the vehicle. Sight along the center line of the vehicle (from rear of vehicle forward) to verify accuracy of the line placement.
Rock vehicle side-to-side three times to allow suspension to stabilize.
Jounce front suspension three times by pushing downward on front bumper and releasing.
Measure the distance from the center of headlamp lens to the ground. Transfer measurement to the alignment screen (with tape). Use this line for up/down adjustment reference.
Measure distance from the center line of the vehicle to the center of each headlamp being aligned. Transfer measurements to screen (with tape) to each side of vehicle center line. Use these lines for left/right adjustment reference.
HEADLAMP ADJUSTMENT
A properly aimed left and right low beam headlamp will project the center of the low beam hot spot on the alignment screen below the horizontal center line and 6 in. (152 mm) right of headlamp center line (HEADLAMP ALIGNMENT SCREEN). The high beam headlamps cannot be aligned. The high beam pattern should be correct when the low beams are aligned properly.

To adjust headlamp alignment, rotate alignment screws to achieve the specified low beam hot spot pattern