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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.
You might be able to customise your keyboard in your computer settings? Find two keys you never use, and reassign the keys to have the signs you need. There's probably a google article to guide you in doing this, for whatever OS you're using.