From 21c57a122254bf9f14e1fab6ee19892a9153b712 Mon Sep 17 00:00:00 2001
From: sarusani <62053849+sarusani@users.noreply.github.com>
Date: Thu, 14 Sep 2023 15:19:04 +0200
Subject: [PATCH 1/2] Add parameter for magnet compensation

allow to enable/disable magnet compensation when 7x7 is in use.
---
 Firmware/Marlin_main.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index 05bcf2c0c9..78ad84b7ad 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -3053,7 +3053,8 @@ static void gcode_G80()
 
     mbl.upsample_3x3(); //interpolation from 3x3 to 7x7 points using largrangian polynomials while using the same array z_values[iy][ix] for storing (just coppying measured data to new destination and interpolating between them)
 
-    if (nMeasPoints == 7 && eeprom_read_byte((uint8_t*)EEPROM_MBL_MAGNET_ELIMINATION)) {
+    uint8_t useMagnetCompensation = code_seen('M') ? code_value_uint8() : eeprom_read_byte((uint8_t*)EEPROM_MBL_MAGNET_ELIMINATION);
+    if (nMeasPoints == 7 && useMagnetCompensation) {
         mbl_magnet_elimination();
     }
 
@@ -4882,12 +4883,13 @@ void process_commands()
     Default 3x3 grid can be changed on MK2.5/s and MK3/s to 7x7 grid.
     #### Usage
 	  
-          G80 [ N | C | O | L | R | F | B | X | Y | W | H ]
+          G80 [ N | C | O | M | L | R | F | B | X | Y | W | H ]
       
 	#### Parameters
       - `N` - Number of mesh points on x axis. Default is 3. Valid values are 3 and 7.
       - `C` - Probe retry counts. Default 3 max. 10
       - `O` - Return to origin. Default 1 (true)
+      - `M` - Use magnet compensation. Will only be used if number of mesh points is set to 7. Default is value stored in EEPROM. Vaild values are 0 (false) and 1 (ture).
       
       Using the following parameters enables additional "manual" bed leveling correction. Valid values are -100 microns to 100 microns.
     #### Additional Parameters

From 84d353793d4b07ced44898205f3742fdbbbc6461 Mon Sep 17 00:00:00 2001
From: sarusani <62053849+sarusani@users.noreply.github.com>
Date: Thu, 14 Sep 2023 23:16:51 +0200
Subject: [PATCH 2/2] Fix typos

---
 Firmware/Marlin_main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index 78ad84b7ad..d6da806d2b 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -4889,7 +4889,7 @@ void process_commands()
       - `N` - Number of mesh points on x axis. Default is 3. Valid values are 3 and 7.
       - `C` - Probe retry counts. Default 3 max. 10
       - `O` - Return to origin. Default 1 (true)
-      - `M` - Use magnet compensation. Will only be used if number of mesh points is set to 7. Default is value stored in EEPROM. Vaild values are 0 (false) and 1 (ture).
+      - `M` - Use magnet compensation. Will only be used if number of mesh points is set to 7. Default is value stored in EEPROM. Valid values are 0 (false) and 1 (true).
       
       Using the following parameters enables additional "manual" bed leveling correction. Valid values are -100 microns to 100 microns.
     #### Additional Parameters