You may have plans to create a form with 'Select' field and there you have a lot of possiblities to select i.e. "Choose your country". In this case, follow the steps below:
- If your have a form on your landing page, open it's options by double click on it.
2. Then, add a new 'Select' field to your form.
3. Set the label and name attribute to 'country'.
4. "Save and close" changes and publish your landing page.
6. You should see a new form field with a base of countries in 'Select' field.