Now, to break one block, you have to sneak while using the hammer, that way it breaks 1x1 instead of 3x3

The request is so that the hammer switches to 1x1 until you sneak-use again, and then goes back to 3x3. The block outlines should reflect the current hammer mode.

Bonus feature: add 2x2 mode, and you cycle thru all modes by sneak-use. The 2x2 mode will break 4 blocks depending on which corner of a block you are hitting TL, TR, BL, BR. The block outlines of the 4 blocks will show what blocks will be broken.