Offhand for Minecraft Bedrock/pocket

Please add offhand to minecraft bedrock/pocket edition and it will be much easier to play, if u think like there should be extra button or something, in java how offhand items work in right click, like that offhand items will active from just use button or if someone play in keyboard mouse like me just right click, and also if u add this, click F in keyboard so the items goes in the offhand just like java, I know there are such items so keep in offhand in be/pe but we need all like minecraft java. PLEASE.