I'm trying to use the financial tags on sales order but I have a problem.
I created a sales order with two identical lines (for testing purposes). On each one I assigned a different value on a new financial tag "OrderReference" :

When posting the packing slip for these lines (full reception), the voucher transactions are grouped and I only get the financial tag for the first line :

The same thing happens with the invoice :

I was hoping to see multiple lines (even if the ledger accounts are the same) but with the different financial tags.
Is this impossible in standard? Am I missing a setup somewhere?
Could I achieve this with a customization?