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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Such change does not add anything valuable to the core concept of the kata. Also, it is too late and unnecessary to invalidate 5K solutions for the sake of this.