On a per document basis, you can write a Lua script in connector that splits DREREFERENCE into fields that represent the folder structure.   Lua parse_csv() where delimiter is / should work.

I think this is what you were asking to do.  If not, then please re-phrase. 

That's as far as I got, however it isn't quite meeting the requirements - is it possible to index them such that they appear as their own "hits" so that they can be subject to sorting/filtering/paging?

Thanks, how would I trigger the script?

Is it possible to trigger an ingest from a Lua ingest script?

Sorry for delay in responding.  Yes, it's been too long.

send_aci_action() or send_aci_command() sending a=ingest to CFS should work. 

And after thinking about this a bit more, you'll surely end up with lots of duplicate folders.  This suggests that DRECOMPACT to accommodate the increased DREADDs that end up replacing prior version of "folder" IDOL document should be a consideration.