How to label payments in Gravity Forms Paypal Pro - paypal

Question

The Situation: My company wants to enable donations through their website. There are two ways a user can donate. 1. Technology. 2. Invest in a project.
The Set-Up: I am using Gravity Forms and PayPal Payments Pro add-on for payment processing on the website. ('Working Great.')
My Issue: I'de like to ensure that payments are labeled when they are passed to my PayPal account. I.E I want to know when someone donates where that money should go. Although all payments will go to one account. In paypal pro you can add comments to transactions. I need to be able to automatically add the comment when a form is submitted.
The solution: Use the below code to add a comment filter to gravity forms pay pal pro. So when the payment is processed for a given form, it also appears in my paypal account with a comment.
add_filter( 'gform_paypalpaymentspro_args_before_payment','add_donation_comment', 10, 2 );
function add_donation_comment( $args, $form_id ) { // do not edit $args or $form_id
// apply to form 1 only
if ( 1 == $form_id ) { // Replace '1' with your form id
$args["COMMENT1"] = 'Field Project'; // Comment1 is the arg that paypal pro uses.
}
// apply to form 2 only
if ( 2 == $form_id ) { // Replace '2' with your form id
$args["COMMENT1"] = 'Help Us Grow';
}
// always return the args, even if not changing anything
return $args;
}