How to change indentation of Postman HTML Pretty view to 2 spaces instead of 4

snippet_of_vkbeautify.2.0.js

function vkbeautify(){   // line 83 of vkbeautify.2.0.js
  // change the string below to 2 spaces instead of 4:
	this.step = '  '; // 4 spaces
	this.shift = createShiftArr(this.step);
};