diff --git a/Marlin/src/lcd/menu/menu_ubl.cpp b/Marlin/src/lcd/menu/menu_ubl.cpp
index 52b7b1ccb0..cbab597d6f 100644
--- a/Marlin/src/lcd/menu/menu_ubl.cpp
+++ b/Marlin/src/lcd/menu/menu_ubl.cpp
@@ -139,9 +139,9 @@ void _lcd_ubl_custom_mesh() {
  * UBL Adjust Mesh Height Command
  */
 void _lcd_ubl_adjust_height_cmd() {
-  char ubl_lcd_gcode[16];
-  const int ind = ubl_height_amount > 0 ? 9 : 10;
-  strcpy_P(ubl_lcd_gcode, PSTR("G29 P6 C -"));
+  char ubl_lcd_gcode[13];
+  const int ind = ubl_height_amount > 0 ? 6 : 7;
+  strcpy_P(ubl_lcd_gcode, PSTR("G29P6C-"));
   sprintf_P(&ubl_lcd_gcode[ind], PSTR(".%i"), ABS(ubl_height_amount));
   queue.inject(ubl_lcd_gcode);
 }
@@ -174,8 +174,8 @@ void _menu_ubl_height_adjust() {
 void _lcd_ubl_edit_mesh() {
   START_MENU();
   BACK_ITEM(MSG_UBL_TOOLS);
-  GCODES_ITEM(MSG_UBL_FINE_TUNE_ALL, PSTR("G29 P4 R999 T"));
-  GCODES_ITEM(MSG_UBL_FINE_TUNE_CLOSEST, PSTR("G29 P4 T"));
+  GCODES_ITEM(MSG_UBL_FINE_TUNE_ALL, PSTR("G29P4R999T"));
+  GCODES_ITEM(MSG_UBL_FINE_TUNE_CLOSEST, PSTR("G29P4T"));
   SUBMENU(MSG_UBL_MESH_HEIGHT_ADJUST, _menu_ubl_height_adjust);
   ACTION_ITEM(MSG_INFO_SCREEN, ui.return_to_status);
   END_MENU();
@@ -187,8 +187,8 @@ void _lcd_ubl_edit_mesh() {
    * UBL Validate Custom Mesh Command
    */
   void _lcd_ubl_validate_custom_mesh() {
-    char ubl_lcd_gcode[24];
-    sprintf_P(ubl_lcd_gcode, PSTR("G28\nG26 C P H%" PRIi16 TERN_(HAS_HEATED_BED, " B%" PRIi16))
+    char ubl_lcd_gcode[20];
+    sprintf_P(ubl_lcd_gcode, PSTR("G28\nG26CPH%" PRIi16 TERN_(HAS_HEATED_BED, "B%" PRIi16))
       , custom_hotend_temp
       #if HAS_HEATED_BED
         , custom_bed_temp
@@ -211,10 +211,10 @@ void _lcd_ubl_edit_mesh() {
     #if PREHEAT_COUNT
       #if HAS_HEATED_BED
         #define VALIDATE_MESH_GCODE_ITEM(M) \
-          GCODES_ITEM_N_S(M, ui.get_preheat_label(M), MSG_UBL_VALIDATE_MESH_M, PSTR("G28\nG26 C P I" STRINGIFY(M)))
+          GCODES_ITEM_N_S(M, ui.get_preheat_label(M), MSG_UBL_VALIDATE_MESH_M, PSTR("G28\nG26CPI" STRINGIFY(M)))
       #else
         #define VALIDATE_MESH_GCODE_ITEM(M) \
-          GCODES_ITEM_N_S(M, ui.get_preheat_label(M), MSG_UBL_VALIDATE_MESH_M, PSTR("G28\nG26 C P B0 I" STRINGIFY(M)))
+          GCODES_ITEM_N_S(M, ui.get_preheat_label(M), MSG_UBL_VALIDATE_MESH_M, PSTR("G28\nG26CPB0I" STRINGIFY(M)))
       #endif
 
       VALIDATE_MESH_GCODE_ITEM(0);
@@ -251,7 +251,7 @@ void _lcd_ubl_grid_level() {
   EDIT_ITEM(int3, MSG_UBL_SIDE_POINTS, &side_points, 2, 6);
   ACTION_ITEM(MSG_UBL_MESH_LEVEL, []{
     char ubl_lcd_gcode[12];
-    sprintf_P(ubl_lcd_gcode, PSTR("G29 J%i"), side_points);
+    sprintf_P(ubl_lcd_gcode, PSTR("G29J%i"), side_points);
     queue.inject(ubl_lcd_gcode);
   });
   END_MENU();
@@ -268,7 +268,7 @@ void _lcd_ubl_grid_level() {
 void _lcd_ubl_mesh_leveling() {
   START_MENU();
   BACK_ITEM(MSG_UBL_TOOLS);
-  GCODES_ITEM(MSG_UBL_3POINT_MESH_LEVELING, PSTR("G29 J0"));
+  GCODES_ITEM(MSG_UBL_3POINT_MESH_LEVELING, PSTR("G29J0"));
   SUBMENU(MSG_UBL_GRID_MESH_LEVELING, _lcd_ubl_grid_level);
   ACTION_ITEM(MSG_INFO_SCREEN, ui.return_to_status);
   END_MENU();
@@ -279,7 +279,7 @@ void _lcd_ubl_mesh_leveling() {
  */
 void _lcd_ubl_fillin_amount_cmd() {
   char ubl_lcd_gcode[18];
-  sprintf_P(ubl_lcd_gcode, PSTR("G29 P3 R C.%i"), ubl_fillin_amount);
+  sprintf_P(ubl_lcd_gcode, PSTR("G29P3RC.%i"), ubl_fillin_amount);
   gcode.process_subcommands_now(ubl_lcd_gcode);
 }
 
@@ -297,8 +297,8 @@ void _menu_ubl_fillin() {
   START_MENU();
   BACK_ITEM(MSG_UBL_BUILD_MESH_MENU);
   EDIT_ITEM(int3, MSG_UBL_FILLIN_AMOUNT, &ubl_fillin_amount, 0, 9, _lcd_ubl_fillin_amount_cmd);
-  GCODES_ITEM(MSG_UBL_SMART_FILLIN, PSTR("G29 P3 T0"));
-  GCODES_ITEM(MSG_UBL_MANUAL_FILLIN, PSTR("G29 P2 B T0"));
+  GCODES_ITEM(MSG_UBL_SMART_FILLIN, PSTR("G29P3T0"));
+  GCODES_ITEM(MSG_UBL_MANUAL_FILLIN, PSTR("G29P2BT0"));
   ACTION_ITEM(MSG_INFO_SCREEN, ui.return_to_status);
   END_MENU();
 }
@@ -326,7 +326,7 @@ void _lcd_ubl_build_mesh() {
   BACK_ITEM(MSG_UBL_TOOLS);
   #if PREHEAT_COUNT
     #if HAS_HEATED_BED
-      #define PREHEAT_BED_GCODE(M) "M190 I" STRINGIFY(M) "\n"
+      #define PREHEAT_BED_GCODE(M) "M190I" STRINGIFY(M) "\n"
     #else
       #define PREHEAT_BED_GCODE(M) ""
     #endif
@@ -334,10 +334,10 @@ void _lcd_ubl_build_mesh() {
       PSTR( \
         "G28\n" \
         PREHEAT_BED_GCODE(M) \
-        "M109 I" STRINGIFY(M) "\n" \
-        "G29 P1\n" \
-        "M104 S0\n" \
-        "M140 S0" \
+        "M109I" STRINGIFY(M) "\n" \
+        "G29P1\n" \
+        "M104S0\n" \
+        "M140S0" \
       ) )
     BUILD_MESH_GCODE_ITEM(0);
     #if PREHEAT_COUNT > 1
@@ -355,11 +355,11 @@ void _lcd_ubl_build_mesh() {
   #endif // PREHEAT_COUNT
 
   SUBMENU(MSG_UBL_BUILD_CUSTOM_MESH, _lcd_ubl_custom_mesh);
-  GCODES_ITEM(MSG_UBL_BUILD_COLD_MESH, PSTR("G28\nG29 P1"));
+  GCODES_ITEM(MSG_UBL_BUILD_COLD_MESH, PSTR("G28\nG29P1"));
   SUBMENU(MSG_UBL_FILLIN_MESH, _menu_ubl_fillin);
-  GCODES_ITEM(MSG_UBL_CONTINUE_MESH, PSTR("G29 P1 C"));
+  GCODES_ITEM(MSG_UBL_CONTINUE_MESH, PSTR("G29P1C"));
   ACTION_ITEM(MSG_UBL_INVALIDATE_ALL, _lcd_ubl_invalidate);
-  GCODES_ITEM(MSG_UBL_INVALIDATE_CLOSEST, PSTR("G29 I"));
+  GCODES_ITEM(MSG_UBL_INVALIDATE_CLOSEST, PSTR("G29I"));
   ACTION_ITEM(MSG_INFO_SCREEN, ui.return_to_status);
   END_MENU();
 }
@@ -369,7 +369,7 @@ void _lcd_ubl_build_mesh() {
  */
 inline void _lcd_ubl_load_save_cmd(const char loadsave, PGM_P const msg) {
   char ubl_lcd_gcode[40];
-  sprintf_P(ubl_lcd_gcode, PSTR("G29 %c%i\nM117 "), loadsave, ubl_storage_slot);
+  sprintf_P(ubl_lcd_gcode, PSTR("G29%c%i\nM117 "), loadsave, ubl_storage_slot);
   sprintf_P(&ubl_lcd_gcode[strlen(ubl_lcd_gcode)], msg, ubl_storage_slot);
   gcode.process_subcommands_now(ubl_lcd_gcode);
 }
@@ -405,7 +405,7 @@ void _lcd_ubl_map_edit_cmd() {
   char ubl_lcd_gcode[50], str[10], str2[10];
   dtostrf(ubl.mesh_index_to_xpos(x_plot), 0, 2, str);
   dtostrf(ubl.mesh_index_to_ypos(y_plot), 0, 2, str2);
-  snprintf_P(ubl_lcd_gcode, sizeof(ubl_lcd_gcode), PSTR("G29 P4 X%s Y%s R%i"), str, str2, int(n_edit_pts));
+  snprintf_P(ubl_lcd_gcode, sizeof(ubl_lcd_gcode), PSTR("G29P4X%sY%sR%i"), str, str2, int(n_edit_pts));
   queue.inject(ubl_lcd_gcode);
 }
 
@@ -544,9 +544,9 @@ void _ubl_goto_map_screen() {
 void _lcd_ubl_output_map() {
   START_MENU();
   BACK_ITEM(MSG_UBL_LEVEL_BED);
-  GCODES_ITEM(MSG_UBL_OUTPUT_MAP_HOST, PSTR("G29 T0"));
-  GCODES_ITEM(MSG_UBL_OUTPUT_MAP_CSV, PSTR("G29 T1"));
-  GCODES_ITEM(MSG_UBL_OUTPUT_MAP_BACKUP, PSTR("G29 S-1"));
+  GCODES_ITEM(MSG_UBL_OUTPUT_MAP_HOST, PSTR("G29T0"));
+  GCODES_ITEM(MSG_UBL_OUTPUT_MAP_CSV, PSTR("G29T1"));
+  GCODES_ITEM(MSG_UBL_OUTPUT_MAP_BACKUP, PSTR("G29S-1"));
   END_MENU();
 }
 
@@ -563,7 +563,7 @@ void _menu_ubl_tools() {
   START_MENU();
   BACK_ITEM(MSG_UBL_LEVEL_BED);
   SUBMENU(MSG_UBL_BUILD_MESH_MENU, _lcd_ubl_build_mesh);
-  GCODES_ITEM(MSG_UBL_MANUAL_MESH, PSTR("G29 I999\nG29 P2 B T0"));
+  GCODES_ITEM(MSG_UBL_MANUAL_MESH, PSTR("G29I999\nG29P2BT0"));
   #if ENABLED(G26_MESH_VALIDATION)
     SUBMENU(MSG_UBL_VALIDATE_MESH_MENU, _lcd_ubl_validate_mesh);
   #endif
@@ -589,12 +589,12 @@ void _menu_ubl_tools() {
   void _lcd_ubl_step_by_step() {
     START_MENU();
     BACK_ITEM(MSG_UBL_LEVEL_BED);
-    GCODES_ITEM(MSG_UBL_1_BUILD_COLD_MESH, PSTR("G28\nG29 P1"));
-    GCODES_ITEM(MSG_UBL_2_SMART_FILLIN, PSTR("G29 P3 T0"));
+    GCODES_ITEM(MSG_UBL_1_BUILD_COLD_MESH, PSTR("G28\nG29P1"));
+    GCODES_ITEM(MSG_UBL_2_SMART_FILLIN, PSTR("G29P3T0"));
     SUBMENU(MSG_UBL_3_VALIDATE_MESH_MENU, _lcd_ubl_validate_mesh);
-    GCODES_ITEM(MSG_UBL_4_FINE_TUNE_ALL, PSTR("G29 P4 R999 T"));
+    GCODES_ITEM(MSG_UBL_4_FINE_TUNE_ALL, PSTR("G29P4R999T"));
     SUBMENU(MSG_UBL_5_VALIDATE_MESH_MENU, _lcd_ubl_validate_mesh);
-    GCODES_ITEM(MSG_UBL_6_FINE_TUNE_ALL, PSTR("G29 P4 R999 T"));
+    GCODES_ITEM(MSG_UBL_6_FINE_TUNE_ALL, PSTR("G29P4R999T"));
     ACTION_ITEM(MSG_UBL_7_SAVE_MESH, _lcd_ubl_save_mesh_cmd);
     END_MENU();
   }
@@ -618,9 +618,9 @@ void _lcd_ubl_level_bed() {
   START_MENU();
   BACK_ITEM(MSG_MOTION);
   if (planner.leveling_active)
-    GCODES_ITEM(MSG_UBL_DEACTIVATE_MESH, PSTR("G29 D"));
+    GCODES_ITEM(MSG_UBL_DEACTIVATE_MESH, PSTR("G29D"));
   else
-    GCODES_ITEM(MSG_UBL_ACTIVATE_MESH, PSTR("G29 A"));
+    GCODES_ITEM(MSG_UBL_ACTIVATE_MESH, PSTR("G29A"));
   #if ENABLED(G26_MESH_VALIDATION)
     SUBMENU(MSG_UBL_STEP_BY_STEP_MENU, _lcd_ubl_step_by_step);
   #endif
@@ -628,7 +628,7 @@ void _lcd_ubl_level_bed() {
   SUBMENU(MSG_UBL_STORAGE_MESH_MENU, _lcd_ubl_storage_mesh);
   SUBMENU(MSG_UBL_OUTPUT_MAP, _lcd_ubl_output_map);
   SUBMENU(MSG_UBL_TOOLS, _menu_ubl_tools);
-  GCODES_ITEM(MSG_UBL_INFO_UBL, PSTR("G29 W"));
+  GCODES_ITEM(MSG_UBL_INFO_UBL, PSTR("G29W"));
   #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT)
     editable.decimal = planner.z_fade_height;
     EDIT_ITEM_FAST(float3, MSG_Z_FADE_HEIGHT, &editable.decimal, 0, 100, []{ set_z_fade_height(editable.decimal); });