Chaning the knowhow header

You want to change the "Knowhow" header. Can you please provide more context or clarify what you mean by "Knowhow" header? Are you referring to:

1. A header in a document or report?
2. A section or category in a knowledge base or wiki?
3. A specific topic or area of expertise?

Additionally, what would you like to change about the "Knowhow" header? Do you want to:

1. Rename it to something else?
2. Add or remove content from it?
3. Change its formatting or styling?

Please provide more information so I can better understand your request and assist you accordingly.