When you are matching a transaction which you've imported from a Bank account and you choose to "Create" a new transaction, you get a screen to choose the supplier etc to log a new expense.
However, when you choose a supplier, the purchase code and VAT rate stay at the generic settings. This makes no sense. When you select the supplier, this should automatically change the purchase code and VAT as it would when creating an invoice.
Simple fix, but would save me many clicks when creating purchases at the matching stage.