A Miscellaneous A/R Voucher can be created independently of any other A/R voucher at any point in time. Use the wizard to create a Miscellaneous A/R Voucher that contains more than a single charge.
After the information for the Miscellaneous A/R Voucher (including the initial charge) has been supplied, you can click Submit/Finish to complete the creation process for this voucher or Submit/Continue to create additional charges.