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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.
sorry but ranks can't be changed
Sorry, there is no typo.
Please see my answer to @Tuffk above.
Could you give the input?