Placing a multi-page InDesign file into InDesign?

I'm trying to place a 300+ page .indd file into another .indd file. It appears that I can only do so manually, one page at a time! Holding down the usual modifier keys does nothing, except when I use the Option/Alt key, which places page after page without the ability to control this torrential flow.

Does anyone know of a better way to do this? Is there a script somewhere that I might use?

Thanks!