Using the Sidebar is a great Navigation tool for users when the data they need to access is stored in several Related Modules and associated using Related Module Lookups.

However, if all of the data that users need to access is stored within a Single Module, which can now hold as many as 512 fields, there is no such navigation tool.

I think it would be a great improvement to the side bar if we allowed users the ability to be navigated up and down a very long module by providing a list of Module Sections, in addition to the list of related modules.