Click on the "Settings" icon and then "Custom Fields".
Click the "Add Appointment Custom Field".
A box that looks like this
should pop up enabling you to create a custom field and lets you choose if you want it to be in checkbox type, dropdown, short text or long text.
Check the box beside "Hide from cleaners?" if you want it hidden from your cleaners.
Hit "Create Field".
You can also edit or delete the fields you made under the Actions column.
The next time you create/edit an appointment, the custom fields you've added should show up.
Appointment custom field, schedule custom field
Reviewed and updated by Mina on 10/28/2019.