The Simple Case
In many places in Music Monitor, when you select a field to enter content, it will show a drop-down menu of entries to choose from. For example, when terminating a tuition enrolment, you can enter a Reason for the termination, and that field has a drop-down menu.
If the Reason you want doesn't appear on this list, all you need to do is click again in the empty box, and then type in a new option.
Drop-down menus of this type are populated by the entries that already exist for this field in other records. So what you enter here will then become an option for use later.
NOTE: This particular example is one (of many) where you should take care to choose suitably broad options. If you put too much detail in this field, you will end up with dozens of slightly different options, drawn from all the different entries that have been used over time. Using broader options that encompass more circumstances keeps the list shorter, and easier to use.
Other Cases
Some drop-down menus do not give you this option, and that is because the options are determined by the contents of a different file. For example, when you are creating a new Ensemble enrolment, there are drop-down menus that you cannot edit in the same way as above.
The menu shown above, in the Discount Description field, is drawn from the Fees file (showing only those with the Fee Category of "Discount"). To edit this list, you need to go to the Fees file and add or edit a record.
The Pencil icon shown above that field takes you directly to the table where you can edit the records in this file. Closing the Fees file brings you back to the enrolment window to continue creating the enrolment record.
Generally, drop-down menus in Music Monitor where you can't simply add a new entry will show this Pencil icon that takes you to the screen where you can edit the list.