Dedicated idea for Bedrock off hand feature

I have a really good idea.. so listen... I know there are people who plays in phone... And that's why off hand in bedrock is not a great idea... But listen how about we give a button only for the off hand... Like if you are holding a torch tapping on the button will place the torch... And when sword tapping on the button will attack with the sword.. and when a pickaxe or shovel, or axe... I mean the things that needs press and holding to work... Well we can just press and hold on the button for those things to work....and about sheild.. tapping can can hold the sheild for until i tap again and holding can hold the sheild for as long as i am holding the button... So the problem is solved...😃😃😃