If there isn't an appropriate race and ethnicity for you to assign an employee to, it is possible to create a new option to choose from.
Click your name in top-right corner, then click Settings.
On the General setting menu, click Employee data.
Click Race & Ethnicity.
Click Add new.
Enter a title, then click Save.
This option is now available to select when you assign a Race/Ethnicity to an employee.
To edit this Race/Ethnicity, click on the pencil icon. To delete it, click on the rubbish bin icon.