Why are tags useful?
Tags are important because they help us find information by teaching our search engines and computers about what kinds of information webpages or snippets of content contain.
How do I add tags to Lokalise?
Adding and removing tags
Click on the "tag" icon and either enter new tag name or choose one from a list of tags you've already defined: Currently there is no tag management available – colors are assigned automatically and tags disappear when there are no keys with that tag.