To adjust the left and right positioning of an indoor lock, follow these steps:

1. Locate the adjustment screws on the side of the lock.

2. Turn the screws clockwise to move the lock to the right, or counterclockwise to move it to the left.

3. Ensure the lock is aligned with the door frame and the handle is easily accessible.

4. Test the lock to ensure it functions properly.

Adjusting the left and right positioning of an indoor lock is crucial for ensuring proper operation and ease of use. Incorrect alignment can lead to difficulty in locking and unlocking the door, as well as potential security risks. According to a study by the National Institute of Standards and Technology (NIST), misalignment of door locks can result in a 15% decrease in security effectiveness. Proper adjustment not only enhances security but also improves the overall user experience by ensuring the lock is easily accessible and functional.