Add 4th extruder

Marlin/language_eu.h

@@ -21,14 +21,16 @@
 #define MSG_PREHEAT_PLA0                    "Aurreberotu PLA1"
 #define MSG_PREHEAT_PLA1                    "Aurreberotu PLA2"
 #define MSG_PREHEAT_PLA2                    "Aurreberotu PLA3"
-#define MSG_PREHEAT_PLA012                  "Berotu PLA Guztia"
+#define MSG_PREHEAT_PLA3                    "Aurreberotu PLA4"
+#define MSG_PREHEAT_PLA0123                 "Berotu PLA Guztia"
 #define MSG_PREHEAT_PLA_BEDONLY             "Berotu PLA Ohea"
 #define MSG_PREHEAT_PLA_SETTINGS            "Berotu PLA Konfig"
 #define MSG_PREHEAT_ABS                     "Aurreberotu ABS"
 #define MSG_PREHEAT_ABS0                    "Aurreberotu ABS 1"
 #define MSG_PREHEAT_ABS1                    "Aurreberotu ABS 2"
 #define MSG_PREHEAT_ABS2                    "Aurreberotu ABS 3"
-#define MSG_PREHEAT_ABS012                  "Berotu ABS Guztia"
+#define MSG_PREHEAT_ABS3                    "Aurreberotu ABS 4"
+#define MSG_PREHEAT_ABS0123                 "Berotu ABS Guztia"
 #define MSG_PREHEAT_ABS_BEDONLY             "Berotu ABS Ohea"
 #define MSG_PREHEAT_ABS_SETTINGS            "Berotu ABS Konfig"
 #define MSG_COOLDOWN                        "Hoztu"