how to change window from 16:9 to 9:16

[DCloudEr]

Hello, I would like to know if it is possible to change from 16:9 (1920x1080) to 9:16 (1080x1920) because I have a character with a large neck, ex: giraffe, it ends up being off the screen, and changing the configuration file it does not make the change , can you send me an example of how I do it. thanks.