Voiding an invoice

Hello- this is not an urgent issue but just a suggestion. Would it be possible to add a void feature for invoices? I had a client that we sent a design contract too and an invoice. She decided not to proceed with the project. I had to void the invoice in QBO but then I had to delete it in DF because otherwise, it shows as an open and outstanding invoice. It would have been nice to have a record of that (besides downloading on our hard drive) of that invoice and just be able to void it. I do love some of the other changes you have made recently! Especially being able to send out an invoice with a whole room total vs per item! Thank you!