I have an idea.
Since sometimes finding the item you're looking for in-game is a pain, perhaps add a quick select of say ten items in the item window that you can put whichever items you use the most.
Unless the item selection is redone in a way that makes things easy to find (not likely), it would be helpful for those who simply don't have the experience or time in the heat of battle to find a crucial item.

Any opinions are welcome, since the idea still needs to be refined, obviously.

Now, if this is resolved by the new season patch, then simply ignore this :3