This feature was added in VINX2 Version 5.1.4
The Account field is now visible in the Purchase Order for each line item added. This is the account that will be passed to Xero during the sync if account integration is enabled.
For stock items, the Account field will take the account of the stock item; if that is not available then it will take the account of the Stock Category. Otherwise, it will default to the Asset account. While for bulk wine items, the Account field will take the account of its batch, otherwise it will default to the Work In Progress account.