Show states depending on the selected country.

Boa tarde.

quero saber como faço caixa de seleção com condição: por exemplo:

Se escolher USA no campo País, aparecem nas aba Estado os Estados americanos, mas se eu escolher Brasil, aparecem na aba seguinte os Estados brasileiros

Grato.

There is no need to use conditions, we already have a widget called "All states and cities" that has all countries, states and cities: https://widgets.jotform.com/widget/all_states_and_cities 

Please check this guide to learn how to add it to your existing form: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-your-Form 

Let us know if you need more help, we will be glad to assist you.