Hi everyone.
I think, the way "Ark" does it, would be the best solution for Grounded as well.
The 8 hot-pouches could be assigned to A B, X, Y and the four main directions on the D-Pad up, down, left right.
To pick a pouch, you hold LT and push the corresponding button of the desired hot-pouch.
Once you have established your personal order of what item should be in which pouch, it works very intuitively, super fast and reliable.
That would make it a lot easier all around in my opinion.
cheers
Linch