Hi,
It's noted on our end. Note however that you're the first one asking about it, so it's not a priority for us at the moment.
If that's something you need sooner rather than later, then you could have a developer work for that for you.
We have some developer documentation for payment methods integration for such purpose.
Also, we can work on such development for you too. If you need a quote, you can use our contact form to request it:
www.hikashop.com/support/contact-us.html
