An API call to feed a list of file ids or hashes to replace or append to the contents of a named page.
Currently, the only way to alter page content through the API seems to be POST /add_urls/add_url.

My use case: I experiment with some basic image analysis for sorting/filtering files, it would be very useful if I could just have a hydrus page with my results in a specific order, without making an external UI or managing temporary tags.