Import Customer Transactions - Sales Receipts - Allow Bank Account to be specified

When using the Import Customer Transactions routine to import sales receipts, there is no option to specify which bank account should be used. The default bank account is used. When you enter a sales receipt via the Enter Customer Receipt routine, you do have the option of specifying an alternative bank account for the transaction. The info file for the import spreadsheet says that the nominal analysis fields should not be used for base currency payment and receipt and trying to use them results in a validation error. Our customer has requested the additional functionality as they have quite a few bank accounts to choose from and can only import sales receipts for the default bank account.