Reply To: Page formatting in InDesign

David, the way I read it you are talking about imposition and how you want to set the booklet up as an imposed project. That's not really necessary with InDesign. Simply set your document up as consecutive pages (spreads) and use the Print Booklet command under File in the menu bar. That command will give you various imposition options. This way, you can shuffle and add pages to your heart's content within the document and InDesign takes care of all the page ordering.

Now I have been known to be wrong on occasion and if my understanding of your enquiry is one of those occasions I will apologise in advance for discombobulate this confusing matter even more. ;)