Question about Gravity Forms

Ahoy! (sorry about that)

I’m sitting here with a checkbox field that has 4 options. I need it to only allow one option. There’s a box in the settings checked that says ” Allows users to select one or many checkboxes ” and it won’t let me uncheck it. I ended up on Gravity Forms help section and it’s promoting a $59 per year add on that says it allows only one box to be checked (using the add on).

Please for the love of God tell me that I don’t have to buy an add on to limit the checkbox field to only one choice? Not too much in this world makes me angry but if this is the case I’m going to lose my mind. Lol

Anybody? 🙂

Thanks either way and for your time!! <3