offhand in bedrock mechanics for mobile

Offhand mechanics: block and block - "extra" hotbar slot; block and tool - tool used for breaking, block for placing; Two tools (same, eg two hoes) - Same for the two blocks scenario; two different tools (eg one spear, one hoe) - best tool for block in question is used. By default it can be like an extra hotbar slot. Default is non offhand. For shields, you click the shield icon to use it