Already have an Authorize.net license & account

Our non profit already has an Authorize.net license and account set up that is currently used through our Events Manager. We do not want to use Pay Pal Standard as our payment gateway, as we want to streamline the process between “events” and “donations”. Is there a way to connect our Authorize.net current account as the Add On for Give? Or will we have to pay for another site wide license? To me that does not make sense at all.

https://wordpress.org/plugins/give/