Update TinyBoy2 configurations

Marlin/example_configurations/TinyBoy2/Configuration.h

   #define UBL_PROBE_PT_2_Y 20
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
-  #define UBL_G26_MESH_EDITING     // Enable G26 mesh editing
+  //#define UBL_G26_MESH_EDITING    // Enable G26 mesh editing
 
 #elif ENABLED(MESH_BED_LEVELING)
 
 #endif // BED_LEVELING
 
 /**
+ * Use the LCD controller for bed leveling
+ * Requires MESH_BED_LEVELING or PROBE_MANUALLY
+ */
+//#define LCD_BED_LEVELING
+
+#if ENABLED(LCD_BED_LEVELING)
+  #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
+  #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
+#endif
+
+/**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
  */
 
 // If SOFT_PWM_SCALE is set to a value higher than 0, dithering can
 // be used to mitigate the associated resolution loss. If enabled,
-// some of the PWM cycles are stretched so on average the wanted
+// some of the PWM cycles are stretched so on average the desired
 // duty cycle is attained.
 //#define SOFT_PWM_DITHER
 
 // Temperature status LEDs that display the hotend and bed temperature.
-// If all hotends and bed temperature and temperature setpoint are < 54C then the BLUE led is on.
-// Otherwise the RED led is on. There is 1C hysteresis.
+// If all hotends, bed temperature, and target temperature are under 54C
+// then the BLUE led is on. Otherwise the RED led is on. (1C hysteresis)
 //#define TEMP_STAT_LEDS
 
 // M240  Triggers a camera by emulating a Canon RC-1 Remote

Marlin/example_configurations/TinyBoy2/Configuration_adv.h

 
   #if ENABLED(Z_DUAL_ENDSTOPS)
     #define Z2_USE_ENDSTOP _XMAX_
+    #define Z_DUAL_ENDSTOPS_ADJUSTMENT  0  // use M666 command to determine/test this value
   #endif
 
 #endif // Z_DUAL_STEPPER_DRIVERS
 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT, AZTEEG_X3_PRO, MIGHTYBOARD_REVE
+ *                         known compatible chips: MCP4451, MCP4018
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_MOTOR_CURRENT_DEFAULT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
 
 // Uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
 #define DIGIPOT_I2C_NUM_CHANNELS 8
 // Actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================
 //#define BEZIER_CURVE_SUPPORT
 
 // G38.2 and G38.3 Probe Target
+// ENABLE PROBE_DOUBLE_TOUCH if you want G38 to double touch
 //#define G38_PROBE_TARGET
 #if ENABLED(G38_PROBE_TARGET)
   #define G38_MINIMUM_MOVE 0.0275 // minimum distance in mm that will produce a move (determined using the print statement in check_move)