I hope you are implementing this already but it would seem to be a massive oversight to not be able to add notes to In-tray documents within Accountright Live. A book-keeper often needs to be notifie...
I also think notes would be helpful on invoices currently in the In Tray. I check prices against orders before creating the bill and if we have been incorrectly charged, then invoices sit in the In Tray until the issue is addressed and it would helpful to to put a note explaining why inovices are sitting in the In Tray waiting to be entered.