You now have the ability to make automatic recurring donations at a number of levels. Just click the desired amount. Your donations can be made through a credit card or an existing Paypal account. Because it is a recurring account, you will be asked to set up an account and identify your funding source.
If you need to suspend or cancel a recurring donaton, click on the "Cancel Donations" button.
You will be taken to Paypal and presented with a cancellation screen similar to the graphic below. PayPal labels recurring donations as "Subscriptions"