No Authorize.net

Hi there,

The Authorize.net gateway is a premium Add-on which you can purchase here:
https://givewp.com/documentation/add-ons/authorize-net-gateway/

To change all instances of the word “Donation” throughout the plugin, you can use this PHP Snippet:
https://github.com/WordImpress/Give-Snippet-Library/blob/master/translation-snippets/change-all-instances-donation.php

If you need guidance implementing custom PHP functions on your website, we have this guide here: https://givewp.com/documentation/resources/adding-custom-functions-to-your-wordpress-website/

Thanks!