How to show an Onsite Form only to returning visitors

1. First, you need to create a form. If you haven't already, check this article. You can also select one existing form, by clicking on the Campaigns tab from the main menu and then clicking on the form that you want.

2. From the Editor view, click on the Visibility tab, as shown in the picture.

3. From the Visibility view, you can also set your form's trigger, frequency and targeting. 

4. Under the Targeting tab, you can click on the New/Returning box and click on the toggle to enable it. 

5. After clicking, a new menu opens up, where you can select if you want to show your form to new or returning visitors.

6. To show your form only to returning visitors, you need to click on the toggle to enable the rule and click on the Returning Visitors box. Your screen should look like the photo below.

7. Don't forget to click on the Save button to save your progress.