Pillar's feed

Does anyone know how to add tags. I'm starting to organize my profile page and I noticed that I can't add tags on the manga/manhwa.

There's no option to add them, even if you type the tag that you want, and press the 'enter button' --- nothing happens.

There is a popular tags that you can choose from but I want to use my own tags for my convenience when searching for the series that I've read.

Thank you for anyone that who can help me.

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