Sorry for the delay in getting back to you, but thank you for your suggestion!
We do have an active development team for Invoicing, and your suggestion has just been added to their backlog. We’ll get someone to look into this very soon, and hopefully we’ll get this out in an update within too long.
An error occurred while saving the commentFabio commented
Just come across same issue and would have used Invoicing but I am not VAT registered so the account on Intuit QuickBooks cannot be linked. I see this issue was already mentioned in another comment left in March 2018... one year after same issue still unresolved.