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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.
The description actually said enough, it's on you to be creative and try to figure out what is happening. In realaity you rarely have 100% information of the problem, but instead you get only small portion of it and need to figure out a solution ;)