Using the Counter element
The Counter element allows you to increase or decrease a count for whatever you are adding to your form.
Select Counter under Element Properties on the left side of the screen. You will see a new element pop up on your device view.
On the right side of the screen under Element Properties, enter the name of your element as well as a description if necessary. To make information required in order to submit the form, scroll down and select Required under Element Properties.
Click the save icon at the top right corner of the page.