Add original 4MAX Metal configuration and build profile. Also add Case Light control.

Marlin/src/lcd/anycubic_touchscreen.cpp

@@ -212,6 +212,7 @@ void AnycubicTouchscreenClass::Setup()
   FlowMenu = false;
   BLTouchMenu = false;
   LevelMenu = false;
+  CaseLight = false;
   FilamentSensorEnabled = true;
   MyFileNrCnt = 0;
   currentFlowRate = 100;
@@ -2236,6 +2237,20 @@ void AnycubicTouchscreenClass::GetCommandFromTFT()
                 }
             #endif
 
+            #if EITHER(KNUTWURST_4MAX, KNUTWURST_4MAXP2)
+            case 42:
+                if(CaseLight == true)
+                {
+                    SERIAL_ECHOLNPGM("Case Light OFF");
+                    queue.inject_P(PSTR("M355 S1 P0"));
+                    CaseLight = false;
+                } else {
+                    SERIAL_ECHOLNPGM("Case Light ON");
+                    queue.inject_P(PSTR("M355 S1 P255"));
+                    CaseLight = true;
+                }
+            #endif
+
             #if ENABLED(KNUTWURST_MEGA_P_LASER)
               case 34:// Continuous printing 
               {