Brands are designed to be flexible and you can edit or change a brand after it's been created.
A brand can be used for both emails and newsletters.
Note: Changes made to a brand will impact future emails for any sequence or newsletters using the brand.
To edit your brand go to Account Settings and select StickyEmail from the drop down.
This will slow your list of Brands that you have or allow you to create a new brand to use with emails and newsletters.
To edit: Type the changes and the updates will be saved automatically.