Improve Customer Controls For Mobile Players'

As a mobile player in Minecraft, I would like Mojang to improve the custom controls for mobile. Mobile players should have the ability to adjust all the button and interface on their screen including the setting button, emote button, change perspective button, the chat button, and the inventory button. it would be amazing to have the ability to adjust all this controls to your liking so it can be easier for mobile player. Not only that we should have the option to adjust the inventory screen as well as the location where the potion effects are indicated. The inventory interface on classic mode is to small and it's on the center of the screen it's hard to get it to it when your crafting, it's the same for pocket mode as well its to large it covers your screen, it's annoying that you should move your whole band just to craft things. Mojang should add the ability adjust the interface and transparency of the inventory screen and the potion indicator. I don't know if what I'm asking is hard to do, but I would like it happen to improve the quality of life for mobile player.