What does it do?
The Copy Cat perk allows you to configure a checkbox which, when clicked, will copy the values from one field to another. This is particularly useful for situations like specifying a billing and shipping address. There is a good chance the user would desire to enter the same address for both fields. With Copy Cat, you can configure a checkbox to copy the user-entered values from the billing address field to the shipping address field.
This also supports simply copying the value from one field to another after the user has entered a value. For example, the user could enter their first and last name into a field and you could automatically populate this into the Name input on the Credit Card field.
How does it work?
This perk uses Javascript to copy all of the values from one field to another when the configured checkbox is clicked. It supports both single input fields (like the Single Line Text field) and complex input fields (like the Address field).