View Dashboard > Tags
You can add multiple tags to each post. All the tags added to different posts are showed in
Tags section. You can edit or delete a tag by clicking the respective icon.
A common bad practice followed by beginners is to add too many tags to a post. Do NOT add multiple tags to a post.
For example, consider a post with title "Best software to check grammar misatkes in paragraphs".
You can add tags like "software" , "writing tools". That's it! Do not stuff so many keywords. It won't help in SEO.