When I inputted my class Syllabus and other long multiple-page documents to my notebooks they cluttered my notebook. It would be great if we could have a feature that condenses those un-necessary elements to one outline level and separate subsequent pages in the large documents from the rest of the notebook view.

Maybe utilize the vertical and horizontal scrolling? Have normal pages scroll using the user designated scroll direction (eg vertical) and the sub-outline pages scroll the other scroll direction (eg horizontal).

You could only add two directions then I suppose