> For the complete documentation index, see [llms.txt](https://docs.flowappz.com/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flowappz.com/home/form-fields-pro/using-conditional-logic.md).

# Using Conditional Logic

Form Fields Pro allows you to display or hide form fields based on user input.

1. Select a field and open the **Conditional Logic** settings.
2. Define rules based on previous field inputs (e.g., "Show this field if age is greater than 18 in datepicker").
3. Press Insert Field and publish your site to test the logic in action.

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