Guidance is a general term for additional information related to Role, Task, and Work Product. Guidance provides information on how to perform your role, how to create a work product, how to perform your task, and so on. For more information see Guidance.
You should always create new Method Content in a Method Plug-in that you produce.
To createGuidance:
If the type of guidance is a Practice, you can add references to other elements. If the guidance is a Template, you can attach a file to the guidance.