Combinable Flask uses and/or remapping of Flask buttons

There should be a way to use multiple flasks with just one button it's just so awkward to try to keep multiple flasks running at the same time with the way they are mapped currently in my opinion. It would be huge improvement in my opinion if we could just put the flasks to whatever keybind we want for instance it would be much more reasonable to have my auras on the d-pad and my flask on R2+Facebutton.

The way it is now i rather die without using my defensive flasks because if i use them i have to stop moving which is even more likely to get me killed