In order to effectively organize sections, pages, subpages there is a tremendous need to collapse subpages under a main page for each section so that all main pages can be viewed and expanded only when needed. (Think Outlook PST's organization) A need to create and collapse sub-sub pages would also be beneficial.

Each Section may have the need to have say 5 of the same pages. (constant information across each section)
Each page then has the same 5 sub pages (constant information) then after that each Page will have separate sub pages that don't correlate across the workbook. Being able to collapse those into a main page would allow browsing of the top level and


For a larger set of sections, pages, and sub pages searching is not the best method to find old notes so being able to collapse would allow to see only needed\more used and referenced data while still maintaining all other notes if needed.