Hello,

You have to solution to do that.

First, create a new field, it will be your country :
- Select the type drop down and scroll down to the bottom of the page.
- Here you have two ways to fill the datas, if you have a database table, select external storage and enter the infos of your table, if you can also enter the data one by one by using the internal storage.
- If you have a lot of country, the first solution will be the best solution.

Then create a second field for your city :
- Select the type cascade and scroll down to the bottom of the page.
- You can enter the city by using one of the two solutions mentionned above, the only difference is that you must enter the parent of each option.
- In this field, you need to enter the exact value you have set in the country field, otherwise the cascade field will not work.

You can see an example for the cascade fields on demo.joomprod.com/adsclarity/administrator, the credentials are demo/demo.

Best regards.