I want to put other people's channels into this channel page, but I don't know how. I've seen some tutorial videos and it looks like there's an 'add channel' option in YT Studio but I can't find it.
Maybe it's just not available for mobile version?
Thank you.Head to YouTube Studios
Go to "Customization"
Head to featured channels
Add the section or add channels to the section
Tap publish
Enjoy!