Scenarios are usually prepared as follows:

First of all, you need to practice, because you need to change all the props on the stage in a short time, so it takes special time to practice when you enter the theater.

Secondly, landmarks are usually posted on the stage table, which is convenient for you to find your position quickly when changing channels, and sometimes even silver landmarks are used.

Finally, because the audience watched the performance in the theater for a long time, they suddenly felt that the lights were out and it was very dark. But generally speaking, there will be scene changes in the direct environment between scenes, and the light of scene changes is generally dim, but people who change scenes on the stage can still see it after a long time of contact.