Reports - editing the General Comment

When proofreading reports the proofreader sometimes notices errors in the General Comment provided for the whole class. However the proofreader cannot readily edit this. The option appears to be available, but in fact a General Comment as seen by the proofreader in edit mode is not the General Comment provided by the original class teacher.
It would be useful for the proofreader to be able to edit the real General Comment (as provided by the class teacher) at this stage.
[I realise that given the right permission the proofreader can "View as Other", assume the identify of the class teacher and edit, but this is an extra series of steps out of the task in hand].
Thanks