I want to use autoTool, but the thing is
when i use it, it uses my iron pickaxe always and i want it to use my stone pick and only use iron pick when mining diamonds and redstone.Either this already exists and i couldnt find it or it doesnt and if it doesnt i would suggest you add it.

• I know how to properly use check boxes
• I have not used any OwO's or UwU's in this issue.

You can use an external autotool for that purpose (enable assumeExternalAutoTool, install autotool mod, hope the mod is compatible). Apart from than, this has already been suggested in #672 / #783

can you tell which autotool mod allow using stone pickaxe when iron is not needed?

You can use an external autotool for that purpose (enable assumeExternalAutoTool, install autotool mod, hope the mod is compatible).
Apart from than, this has already been suggested in #672 / #783