Having the functionality to manually adjust an item price when booking work on is great. However, we can't seem to adjust it to £0.00 (when an item is free) and it automatically changes it to £0.01. I need the free item to be listed so the dentist can see it has been added for free but also to be counted as a unit of production. As it automatically changes the price to £0.01, I have follow this by adding a custom fee of -£0.01 which looks untidy & unprofessional on invoices and also takes up time.