pandoc is a general purpose document orchestrator. You should learn its capabilities.
Here is a parallel world asking your question.
https://forum.squarespace.com/topic/223240-splitting-a-document-with-custom-pandoc-lua-writer/
"or if it is even possible with custom writers to generate multiple output files from a single input file".
But let us start with the suggested key strokes.
With judicious use of “ctrl+]” and “ctrl+[” on your Latin code … just click anywhere in the text … text blocks can be “staggered” to make separation easier.
But returning to Pandoc … go to Tools > Build System … to see if pandoc is available. It is in my setup. And so my thought is that you can leverage Pandoc to apply to any Doc … pure text or more complex … using Lua filters. But I don’t think that this needs Pandoc. Just “ctrl+]” and “ctrl+[” to stagger text blocks for your stated purpose of discerning.