How To Control Two Different Characters With Keyboard?

Following your tips, I have succeed changing it to mutliplayerviewportclient, and after I created the subclass, the Source folder appears, really thank you!
When I create another 2 players and set view target to a specific camera, the whole scene is black! Have you ever met this problem? Besides, I use “is player controlled” node to test if the character is controlled, it prints false, that means it does’t work…I’m so confused about this…

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