Set values in a field type Link

Grettings to all, I am new using frappe erpnext, I have a link type field that options focus the information in the Doctype Country, but I need to select only one type of data to show only the countries that have that associated data. Since not all countries have that additional information.

Thank you for your kind help.

Duplicate of this: Set specific values in a field type Link

You can use get query on *.js file. To filter that link field as per your condition.