Allow customer to enter Point amount to be used at checkout

-- url of the page with the problem -- : localhost
-- HikaShop version -- : 3.2.0
-- Joomla version -- : 3.7.4
-- PHP version -- : 7
-- Browser(s) name and version -- : Firefox

I've followed the User Point setup and I have the Point Plugin working. Upon trying it I noticed that the customer doesn't get to choose the amount of points they want to use (it seems to be predetermined by a min/max amount in the config). Is there any way to change this from radio buttons (yes/no) and instead have a input field amount? This is similar to how Opencart "Reward Points" are applied (see attached pic).

(example, "You have XXX points, please enter a valid point total to use at checkout").

So it doesn't look like this is possible correct?
Are there any plans to implement such a feature in the future

Optimally I need a way to have Admins apply a Checkout Price adjustment at Checkout. I thought it would be simple enough to give the admin account user points and they could proceed through checkout and make the price adjustments using points. Is there any other way an admin can adjust the checkout price by a certain number? It seems that the point system is really just another coupon method attached to a user, and the actual coupons are also predefined amounts. Do you still think using the point-system is the best approach for discounting store credit by a number amount?