How do you create a modifier for a homebrew monk subclass that ADDS wisdom to attacks?!

Essentially just the title. I am trying to create a homebrew subclass for the 5.5e monk. The monk's capstone ability is that for 8 focus points it can enter a state where You gain the following benefits for 1 minute:

• Your walking speed increases by 20 feet.

• You have a +2 bonus to AC.

• When you take the Attack action, you can make one additional unarmed strike as a part of that action.

• You can add your Wisdom modifier to your attack and damage rolls.

I have it to where this feature needs to be activated similar to the 5.5e barbarian's rage via activating it (WHICH WORKS AND ADDS THE EXTRA ATTACK, AC BONUS, AND MOVEMENT SPEED), but I cannot get the wisdom to add to any of the monk's attacks!

I have the following modifiers: