Open your dashboard, click on the profile, and select "Integrations".
Now, from the left menu, click on "Payment" and add your payment gateway.
📝 Additional insights:
🗄️ Old dashboard:
Open your dashboard, click on your profile, and select “Payment methods” and create a new payment method.
Add a title for your method so you can recognize it later.
📝 Additional insights:
You should enable the "Form with payment" toggle from the settings tab then choose the payment method you added.
🗄️ Old dashboard:
