In v8.0.34 and above there is a new button on roll-marking screen (standard and YRSM screen) - Add miscellaneous charge for SELECTED STUDENT. Allows teachers to add a line item in Student Accounts for things such as reeds, music books, etc.
Click on the student you want to add the charges, click on the button and add the description of the charges and continue
A line will be added on the accounts tab for that student
Alison is the developer of Music Monitor and loves adding things to make your life easier. Check in here regularly to see what she's working on!