auto filling boxes with pages form an INDD doc?

[SS-T378827360wo8]

I often have a position several InDesign pages into a single document to prepare for print - an example is a 300 page document that needs to be placed in to a single page for print. I have the boxes in the new document - is there a way to automatically fill them with them pages from the original document?

[SS-T378827360wo8]

*from (not form) in the title