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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.
Good point, I was trying with the definition that was given before and didn't manage anthing. Once I re-read the question and tried that it worked in less that 30 sec.
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