Worksheets enable multiple instances of the same page without having to create new sets of objects for each page in your app. They keep your apps clean and simple, while still supporting complexity when needed.
This simplifies your apps with less objects. Only include objects that you want duplicated.
Settings
Specify the desired # of worksheets in a Page object's settings in App Builder.
Remarks
When rendered to an output (i.e. for reporting), a collection of worksheets will be rendered as a list.