Check Rhizome Mod

This mod adds a keybind to toggle attack key toggle with message label

You don't need to go to the option page to turn on/off the attack toggle again. The attack toggle will reset to off everytime you launch your game.

Set the toggle hotkey first

The label

Press the hot key and if the mouse label is blue not gray, just left click your mouse once and the game will hold left click for you, then the label go red.