Print a 120 page word document as 30 separate 4 page folded booklets

I have a 624 page document which is made of 156 separate 4 page documents. I want to print pages 1-4 as an A5 folded booklet (i.e. one sheet of A4 folded), then pages 5-8 as a folded booklet etc. to obtain 156 4 page folded booklets. All the pages are unique. I have used booklet settings, staple and fold settings, and told it to do 'fold only' and chosen 4 sheets but all that happens is it prints the whole thing as one booklet but not stapled. Pages 1 and 2 are fine, but pages 3 and 4 are on a different sheet whereas I want pages 1,2,3,4 on the same sheet. And actually I don't care if they are

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