As I noted in the thread your started on the FrameMaker forum, without knowing more about how the FrameMaker document is constructed, it's hard to suggest how to replicate it in InDesign. Also, it depends on what release of InDesign you are using.
However, neither InDesign nor FrameMaker can conditionalize pages, just text within text flows.
Earlier FrameMaker releases were able to be tricked into flowing two different text flows to appear one on left pages and one on right pages, for student/instructor-like purposes. However, after hiding conditionanlized instructor content to create student manuals still required some manual attention.
InDesign can place (import) pages from other InDesign documents, as well as PDF pages. You might find these abilities useful.