Expansion of export for expenses to include attached documents

What version of Invoice Ninja are you running? ie v4.5 / v5
v5

What environment are you running?
Docker

Hi,
I need to prepare my data for my tax office. For that I want to give my expenses that I logged with InvoiceNinja. I can already do that via the csv export. But the tax office wants to check some random samples if I logged the expenses correctly. For that they would like to have the attached bills/receipts. It is already possible to download my documents via the documents view, but that loses the information to what expense they relate to.

What I propose is to extend the expense export to include the documents. Ideally this would result in a zip that contains all attached documents and the CSV. The CSV is extended by one column that names the related documents to that expense.

This would also help greatly towards building a connection to DATEV.