How can we improve WHMCS?

I wish option for providing different Auto Redirection settings based on the payment gateway in use.
I have set Bank Transfer, Stripe and PayPal Basic as Payment Gateways.
And I have selected Just show the order completed page (no payment redirect) for Auto Redirect on Checkout.

If I can select Automatically forward the user to the payment gateway, my customers will have a smoother payment for PayPal Basic.
But if I select Automatically forward the user to the payment gateway, the Bank Transfer payer will be redirected to the invoice and will not be able to see the order compled page.

I want an option that can be set as follows.
Bank Transfer: order completed page
Stripe: order completed page
PayPal Basic: payment gateway