Bed leveling grid - how to change points for probe (no replies)

Hi guys, using Marlin 1.1.0-RC7 firmware with Z-probe, as all working fine from beginning I notice that points where my probe doing autolevel is not where I want to. I would like to change them. Not sure where should I look in my firmware.


I've found this section, my probe checking 9 points not sure if I looking in right part of the code

Configuration.h

 #define AUTO_BED_LEVELING_GRID

  #if ENABLED(AUTO_BED_LEVELING_GRID)

    #define LEFT_PROBE_BED_POSITION 40
    #define RIGHT_PROBE_BED_POSITION 200
    #define FRONT_PROBE_BED_POSITION 5
    #define BACK_PROBE_BED_POSITION 140

    #define MIN_PROBE_EDGE 10 // The Z probe minimum square sides can be no smaller than this.

    // Set the number of grid points per dimension.
    // You probably don't need more than 3 (squared=9).
    #define AUTO_BED_LEVELING_GRID_POINTS 3

  #else  // !AUTO_BED_LEVELING_GRID

    // Arbitrary points to probe.
    // A simple cross-product is used to estimate the plane of the bed.
    #define ABL_PROBE_PT_1_X 60
    #define ABL_PROBE_PT_1_Y 10
    #define ABL_PROBE_PT_2_X 107
    #define ABL_PROBE_PT_2_Y 140
    #define ABL_PROBE_PT_3_X 163
    #define ABL_PROBE_PT_3_Y 20

regards