Addon for WHMCS (Custom Field)

- I'm using custom fields in WHMCS to list available locations.
Example:
Australia - Sydney
Brazil rio de janeiro
Canada - Calgary
china - hong kong
Colombia - Bogota
Czech - Prague
Deutschland - Berlin
Djibouti - Djibouti City

- I need to display the country's flag before the country's name.
- Several other different locations may be registered
- Display the list of locations in alphabetical order (use the name of the country as a reference)