Add an Off-Hand Slot Next to the Hotbar for Mobile Players

I have an idea for adding the Off-Hand feature to Minecraft Bedrock, especially for mobile players. Instead of adding a separate Off-Hand button, Mojang could add a small Off-Hand slot next to the hotbar, similar to how Java Edition has an Off-Hand slot. For example: [Off-Hand Slot] [1] [2] [3] [4] [5] [6] [7] [8] [9] Mobile players could quickly switch to an item in the Off-Hand slot by tapping it. This could make using shields, maps, torches, and other Off-Hand items much easier and faster. I think this would be a simple and convenient control system for mobile Bedrock players.