How to hide Acceptable Responses in the Fill in the Blank Rise Block

Come on Articulate, you need to listen to your customers and actually update your product with stuff that people are crying out for. Rise is supposed to be a learning tool and yet updates to the knowledge check blocks are the most ignored requests. I was trying to use a 'Fill in the blank' knowledge check block as a way to password protect information until ready to move on. But since you give the 'acceptable answer' out without the option to restrict it, it's not serving its purpose. It's been YEARS since this was raised and it's clearly a bugbear for many people. Please can this be added to the features requests or bumped up a few places.