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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.
For those in 'Murica:
k/h = 27.777778 cm/s
hope that helps with the transalation! lost me for a bit there!!