Annotating patient forms

It would be really useful to be able to annotate a patient form - something simple like what you can already do with annotating body charts. For example, this would allow us to highlight something that needs following up with the patient when they attend. Would anyone else find this useful? Currently, we either have to print the form and annotate it (and possibly scan it back in as a file), or have multiple tabs open, one with the form and one with a patient note.