What does seat selection mean at check-in?

How to select seats at check-in.

How to select seats at check-in: After logging in to the system, enter the home page of the application. At this time, click on the unselected seat and then click on start seat selection. You can add fellow passengers. If it is just one person, just click Next to enter other pages. Then you can see a large picture showing the cabin. All available seats are black and unavailable seats are gray. Click to select. After completing the selection, click Next. When you return to the main page, the new seats will be displayed. When choosing a seat, don't choose a seat too far back, just like ordinary people taking a car. Seats further back vibrate more and are not suitable for people suffering from motion sickness. The same goes for seats at the back of an airplane. If you are prone to dizziness, don’t choose a seat too far back. You can choose a seat that is closer to the escape door. If an accident occurs, you can escape from the escape door faster. This is also one of the safer seats. The window seat can see the scenery in the sky more clearly, which is also the first choice of many people when choosing a seat.