diff --git a/src/main/java/org/mineacademy/fo/ChatUtil.java b/src/main/java/org/mineacademy/fo/ChatUtil.java
index 64b9f1983..8660f8c7b 100644
--- a/src/main/java/org/mineacademy/fo/ChatUtil.java
+++ b/src/main/java/org/mineacademy/fo/ChatUtil.java
@@ -1,6 +1,14 @@
 package org.mineacademy.fo;
 
-import java.awt.Color;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import org.bukkit.ChatColor;
+import org.mineacademy.fo.MinecraftVersion.V;
+import org.mineacademy.fo.model.Whiteblacklist;
+import org.mineacademy.fo.plugin.SimplePlugin;
+import org.mineacademy.fo.remain.CompChatColor;
+
+import java.awt.*;
 import java.text.Normalizer;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -9,15 +17,6 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import org.bukkit.ChatColor;
-import org.mineacademy.fo.MinecraftVersion.V;
-import org.mineacademy.fo.model.Whiteblacklist;
-import org.mineacademy.fo.plugin.SimplePlugin;
-import org.mineacademy.fo.remain.CompChatColor;
-
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-
 /**
  * Utility class for managing in-game chat.
  */
@@ -225,8 +224,7 @@ public static String capitalizeFirst(final String message) {
 	 * capitalizeFully("")          = ""
 	 * capitalizeFully("i am FINE") = "I Am Fine"
 	 * </pre>
-	 *
-	 * @param message  the String to capitalize, may be null
+
 	 * @return capitalized String, <code>null</code> if null String input
 	 */
 	public static String capitalizeFully(String str) {
@@ -262,7 +260,6 @@ private static String capitalizeFully(String str, char[] delimiters) {
 	 * </pre>
 	 *
 	 * @author Apache Commons - WordUtils
-	 * @param message  the String to capitalize, may be null
 	 * @return capitalized String, <code>null</code> if null String input
 	 */
 	public static String capitalize(String str) {
@@ -299,6 +296,34 @@ private static String capitalize(String str, char[] delimiters) {
 		return str;
 	}
 
+	/**
+	 * Converts UPPER_UNDERSCORE string to Capital_Underscore
+	 */
+	public static String upperToCapitalUnderscore(String s){
+		char[] array = s.toLowerCase().toCharArray();
+		StringBuilder sb = new StringBuilder();
+		boolean capitalizeNext = false;
+		char next;
+
+		sb.append(Character.toUpperCase(array[0]));
+		for (int i = 1; i < array.length; i++){
+			if (array[i] == '_'){
+				capitalizeNext = true;
+				next = array[i];
+			} else {
+				if (capitalizeNext){
+					next = Character.toUpperCase(array[i]);
+					capitalizeNext = false;
+				}
+				else{
+					next = array[i];
+				}
+			}
+			sb.append(next);
+		}
+		return sb.toString();
+	}
+
 	private static boolean isDelimiter(char ch, char[] delimiters) {
 		if (delimiters == null)
 			return Character.isWhitespace(ch);
diff --git a/src/main/java/org/mineacademy/fo/annotation/AutoConfig.java b/src/main/java/org/mineacademy/fo/annotation/AutoConfig.java
index b9ac015eb..63b21da08 100644
--- a/src/main/java/org/mineacademy/fo/annotation/AutoConfig.java
+++ b/src/main/java/org/mineacademy/fo/annotation/AutoConfig.java
@@ -8,7 +8,8 @@
 import java.lang.annotation.Target;
 
 /**
- * This annotation automatically saves and loads fields between a file and a YamlConfig.<br><br>
+ * This annotation automatically saves and loads fields between a file and your custom
+ * class extending {@link org.mineacademy.fo.settings.YamlConfig}.<br><br>
  * <b>On class</b>:
  * <ul>
  * <li>Saves and loads all non-static class fields</li>
diff --git a/src/main/java/org/mineacademy/fo/annotation/AutoStaticConfig.java b/src/main/java/org/mineacademy/fo/annotation/AutoStaticConfig.java
new file mode 100644
index 000000000..ff25dbdb8
--- /dev/null
+++ b/src/main/java/org/mineacademy/fo/annotation/AutoStaticConfig.java
@@ -0,0 +1,46 @@
+package org.mineacademy.fo.annotation;
+
+import com.google.common.base.CaseFormat;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * This annotation automatically saves and loads fields between a file and your custom
+ * class extending {@link org.mineacademy.fo.settings.YamlStaticConfig}.<br><br>
+ * <b>On class</b>:
+ * <ul>
+ * <li>Saves and loads all static class fields</li>
+ * <li>But skips fields that have disabled this feature by <i>@AutoStaticConfig(false)</i></li>
+ * </ul>
+ * When using on class, if you want to prevent one specific field from auto-loading and auto-saving,
+ * use <i>@AutoStaticConfig(false)</i> on that field.<br><br>
+ *
+ * This annotation only works if is set above class. But you can disable fields separately.<br><br>
+ *
+ * <b>About Format:</b><br>
+ * <ul>
+ * <li>By default, format of fields is Capital_Underscore which corresponds to Foundation naming convention.</li>
+ * <li>You can change format to your desired, but system fields (Version, Locale, etc.) will stay the same.</li>
+ * </ul>
+ */
+@Target({ElementType.TYPE, ElementType.FIELD})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface AutoStaticConfig {
+
+    /**
+     * When false, automatic loading and saving does not work for class or field above which is set.
+     */
+    boolean value() default true;
+
+    /**
+     * In what format should we convert your fields to the file.<br>
+     * Only usable if set on class. You can only set one format for one class.<br>
+     * System fields (Version, Locale, etc.) will stay the same regardless of this value.<br>
+     * Default: Capital_Underscore.
+     */
+    CaseFormat[] format() default {};
+
+}
diff --git a/src/main/java/org/mineacademy/fo/plugin/AutoRegisterScanner.java b/src/main/java/org/mineacademy/fo/plugin/AutoRegisterScanner.java
index b60bdaf72..483a9410a 100644
--- a/src/main/java/org/mineacademy/fo/plugin/AutoRegisterScanner.java
+++ b/src/main/java/org/mineacademy/fo/plugin/AutoRegisterScanner.java
@@ -198,13 +198,16 @@ else if (name.matches("localization\\/messages\\_(.*)\\.yml"))
 		final List<Class<?>> delayedLoading = new ArrayList<>();
 
 		for (final Class<?> customSettings : staticCustom)
-			if (SimpleSettings.class.isAssignableFrom(customSettings))
+			if (SimpleSettings.class.isAssignableFrom(customSettings)) {
 				YamlStaticConfig.load((Class<? extends YamlStaticConfig>) customSettings);
-			else
+			}
+			else {
 				delayedLoading.add(customSettings);
+			}
 
-		for (final Class<?> delayedSettings : delayedLoading)
+		for (final Class<?> delayedSettings : delayedLoading) {
 			YamlStaticConfig.load((Class<? extends YamlStaticConfig>) delayedSettings);
+		}
 	}
 
 	/*
diff --git a/src/main/java/org/mineacademy/fo/settings/FileConfig.java b/src/main/java/org/mineacademy/fo/settings/FileConfig.java
index 5291212da..2a08cac01 100644
--- a/src/main/java/org/mineacademy/fo/settings/FileConfig.java
+++ b/src/main/java/org/mineacademy/fo/settings/FileConfig.java
@@ -1191,7 +1191,6 @@ final void load(@NonNull File file) {
 				}
 
 				try {
-					this.onPreLoad();
 					this.loadFields();
 					this.onLoad();
 
@@ -1256,13 +1255,19 @@ protected void onPreLoad(){
 
 	/**
 	 * Called automatically when the configuration has been loaded, used to load your
-	 * fields in your class here if @AutoConfig is not used.
+	 * fields in your class if @AutoConfig is not used.
 	 * <br>
 	 * You can throw {@link EventHandledException} here to indicate to your child class to interrupt loading
 	 */
 	protected void onLoad() {
 	}
 
+	/**
+	 * Called automatically after {@link #onLoad()} regardless of configuration loading success.
+	 */
+	protected void onLoadFinish() {
+	}
+
 	/**
 	 * Save the configuration to the file immediately (you need to call loadConfiguration(File) first)
 	 */
@@ -1304,11 +1309,13 @@ public final void save(@NonNull File file) {
 
 					final String data = this.saveToString();
 
-					try (Writer writer = new OutputStreamWriter(Files.newOutputStream(file.toPath()), StandardCharsets.UTF_8)) {
-						writer.write(data);
+					if (data != null){
+						try (Writer writer = new OutputStreamWriter(Files.newOutputStream(file.toPath()), StandardCharsets.UTF_8)) {
+							writer.write(data);
 
-					} catch (final Exception ex) {
-						Remain.sneaky(ex);
+						} catch (final Exception ex) {
+							Remain.sneaky(ex);
+						}
 					}
 
 					// Update file
@@ -1318,6 +1325,8 @@ public final void save(@NonNull File file) {
 			} catch (final Exception ex) {
 				Remain.sneaky(ex);
 			}
+
+			this.onSaveFinish();
 		}
 	}
 
@@ -1354,6 +1363,12 @@ protected void onSave() {
 				this.set(entry.getKey(), entry.getValue());
 	}
 
+	/**
+	 * Called automatically after {@link #onSave()} (typically when configuration has been saved).
+	 */
+	protected void onSaveFinish(){
+	}
+
 	/**
 	 * Get values from file and set them to fields annotated with @AutoConfig
 	 */
@@ -1455,7 +1470,7 @@ private List<Field> getFieldsToAutoSave() {
 	/**
 	 * Get the deserialized object from the given path depending on its field class type.
 	 */
-	private Object getBasedOnClass(String path, Field field){
+	public Object getBasedOnClass(String path, Field field){
 		Class<?> fieldType = field.getType();
 
 		// ***
@@ -1533,7 +1548,7 @@ enum TypeMethod {
 	}
 
 	/**
-	 * Get the name under which the value will be located in the file.
+	 * Get the name under which the value will be saved in the file.
 	 * Based on user-defined AutoConfig.format() and is lower_underscore by default.
 	 */
 	private String getFormattedFieldName(Field field) {
@@ -1555,19 +1570,14 @@ protected boolean canSaveFile() {
 
 	/**
 	 * Implementation by specific configurations to generate file contents to save.
-	 *
-	 * @return
 	 */
-	@NonNull
 	abstract String saveToString();
 
 	/**
 	 * Override to implement custom saving mechanism, used automatically in {@link #onSave()}
 	 * you can return only the data you actually want to save here.
-	 *
+	 * <br>
 	 * Returns null by default!
-	 *
-	 * @return
 	 */
 	public SerializedMap saveToMap() {
 		return null;
diff --git a/src/main/java/org/mineacademy/fo/settings/SimpleLocalization.java b/src/main/java/org/mineacademy/fo/settings/SimpleLocalization.java
index 63c3d47e6..668ee5588 100644
--- a/src/main/java/org/mineacademy/fo/settings/SimpleLocalization.java
+++ b/src/main/java/org/mineacademy/fo/settings/SimpleLocalization.java
@@ -1,16 +1,19 @@
 package org.mineacademy.fo.settings;
 
+import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.mineacademy.fo.Common;
 import org.mineacademy.fo.FileUtil;
 import org.mineacademy.fo.Valid;
+import org.mineacademy.fo.command.PermsCommand;
 import org.mineacademy.fo.plugin.SimplePlugin;
 
 /**
  * A simple implementation of a basic localization file.
- * We create the localization/messages_LOCALEPREFIX.yml file
- * automatically and fill it with values from your localization/messages_LOCALEPREFIX.yml
- * file placed within in your plugin's jar file.
+ * We create the localization/messages_LOCALE.yml file
+ * automatically and fill it with values from your localization/messages_LOCALE.yml
+ * file placed within in your plugin's jar file.<br>
+ * To change the folder and file prefix, override {@link #getFilePrefix()} method.
  */
 @SuppressWarnings("unused")
 public class SimpleLocalization extends YamlStaticConfig {
@@ -27,20 +30,28 @@ public class SimpleLocalization extends YamlStaticConfig {
 	// Loading
 	// --------------------------------------------------------------------
 
+	/**
+	 * Override to change the file prefix. You can also use folders with forward slash (/)<br>
+	 * Default: localization/messages_LOCALE.yml
+	 */
+	protected String getFilePrefix(){
+		return "localization/messages_";
+	}
+
 	/**
 	 * Create and load the localization/messages_LOCALEPREFIX.yml file.
 	 * <p>
 	 * See {@link SimpleSettings#LOCALE_PREFIX} for the locale prefix.
 	 * <p>
 	 * The locale file is extracted from your plugins jar to the localization/ folder
-	 * if it does not exists, or updated if it is out of date.
+	 * if it does not exist, or updated if it is out of date.
 	 */
 	@Override
 	protected final void onLoad() throws Exception {
-		final String localePath = "localization/messages_" + SimpleSettings.LOCALE_PREFIX + ".yml";
+		final String localePath = getFilePrefix() + SimpleSettings.LOCALE_PREFIX + ".yml";
 		final Object content = FileUtil.getInternalFileContent(localePath);
 
-		Valid.checkNotNull(content, SimplePlugin.getNamed() + " does not support the localization: messages_" + SimpleSettings.LOCALE_PREFIX
+		Valid.checkNotNull(content, SimplePlugin.getNamed() + " does not support the localization: " + getFilePrefix() + SimpleSettings.LOCALE_PREFIX
 				+ ".yml (For custom locale, set the Locale to 'en' and edit your English file instead)");
 
 		this.loadConfiguration(localePath);
@@ -103,8 +114,8 @@ protected final boolean alwaysSaveOnLoad() {
 	public static final class Commands {
 
 		/**
-		 * true = https://i.imgur.com/us88BCT.png
-		 * false = https://i.imgur.com/N7jLu7v.png
+		 * true = <a href="https://i.imgur.com/us88BCT.png">...</a>
+		 * false = <a href="https://i.imgur.com/N7jLu7v.png">...</a>
 		 */
 		public static Boolean SIMPLE_HELP_DESIGN = false;
 
@@ -741,7 +752,7 @@ private static void init() {
 	 *
 	 * @return
 	 */
-	public static final Boolean isLocalizationCalled() {
+	public static Boolean isLocalizationCalled() {
 		return localizationClassCalled;
 	}
 
@@ -749,7 +760,7 @@ public static final Boolean isLocalizationCalled() {
 	 * Reset the flag indicating that the class has been loaded,
 	 * used in reloading.
 	 */
-	public static final void resetLocalizationCall() {
+	public static void resetLocalizationCall() {
 		localizationClassCalled = false;
 	}
 }
diff --git a/src/main/java/org/mineacademy/fo/settings/SimpleSettings.java b/src/main/java/org/mineacademy/fo/settings/SimpleSettings.java
index 9cb8ead5a..78a76b009 100644
--- a/src/main/java/org/mineacademy/fo/settings/SimpleSettings.java
+++ b/src/main/java/org/mineacademy/fo/settings/SimpleSettings.java
@@ -15,7 +15,7 @@
  * A simple implementation of a typical main plugin settings
  * where each key can be accessed in a static way from anywhere.
  * <p>
- * Typically we use this class for settings.yml main plugin config.
+ * Typically, we use this class for settings.yml main plugin config.
  */
 // Use for settings.yml
 @SuppressWarnings("unused")
@@ -175,15 +175,14 @@ protected int getConfigVersion() {
 	public static Boolean NOTIFY_UPDATES = true;
 
 	/**
-	 * Should we warn about incompatibilities.
+	 * Should we warn about incompatibilities?
 	 * It is used in {@link org.mineacademy.fo.plugin.AutoRegisterScanner#autoRegister(Class, boolean)}.
 	 * Please hide these warnings only on the last stage of your plugin development.
 	 */
 	public static Boolean HIDE_INCOMPATIBILITY_WARNINGS = false;
 
 	/**
-	 * Should we warn about Nashorn not installed on the server.
-	 * Is is used
+	 * Should we warn about Nashorn not installed on the server?
 	 */
 	public static Boolean HIDE_NASHORN_WARNINGS = false;
 
@@ -262,7 +261,7 @@ private static void init() {
 	}
 
 	/**
-	 * Upgrade some of the old and ancient settings from our premium plugins.
+	 * Upgrade some old and ancient settings from our premium plugins.
 	 */
 	private static void upgradeOldSettings() {
 
diff --git a/src/main/java/org/mineacademy/fo/settings/YamlConfig.java b/src/main/java/org/mineacademy/fo/settings/YamlConfig.java
index 978514bd7..54fd90958 100644
--- a/src/main/java/org/mineacademy/fo/settings/YamlConfig.java
+++ b/src/main/java/org/mineacademy/fo/settings/YamlConfig.java
@@ -153,6 +153,8 @@ public final void loadConfiguration(@Nullable String from, String to) {
 		File file;
 		boolean justCreated = !FileUtil.getFile(to).exists();
 
+		this.onPreLoad();
+
 		if (from != null) {
 
 			// Copy if not exists yet
@@ -170,16 +172,20 @@ public final void loadConfiguration(@Nullable String from, String to) {
 
 			this.defaults = defaultConfig.section;
 			this.defaultsPath = from;
+
+			this.load(file);
 		}
 
 		else {
 			file = FileUtil.getOrMakeFile(to);
 			this.file = file;
-		}
 
-		if (!justCreated){
-			this.load(file);
+			if (!justCreated){
+				this.load(file);
+			}
 		}
+
+		this.onLoadFinish();
 	}
 
 	/**
@@ -223,7 +229,6 @@ public final void loadInternal(String internalPath) {
 	/*
 	 * Dumps all values in this config into a saveable format
 	 */
-	@NonNull
 	@Override
 	final String saveToString() {
 
diff --git a/src/main/java/org/mineacademy/fo/settings/YamlStaticConfig.java b/src/main/java/org/mineacademy/fo/settings/YamlStaticConfig.java
index 7e31dfa02..8b53424aa 100644
--- a/src/main/java/org/mineacademy/fo/settings/YamlStaticConfig.java
+++ b/src/main/java/org/mineacademy/fo/settings/YamlStaticConfig.java
@@ -1,8 +1,11 @@
 package org.mineacademy.fo.settings;
 
+import com.google.common.base.CaseFormat;
 import org.bukkit.Material;
+import org.mineacademy.fo.ChatUtil;
 import org.mineacademy.fo.Common;
 import org.mineacademy.fo.Valid;
+import org.mineacademy.fo.annotation.AutoStaticConfig;
 import org.mineacademy.fo.collection.SerializedMap;
 import org.mineacademy.fo.collection.StrictList;
 import org.mineacademy.fo.model.BoxedMessage;
@@ -45,6 +48,8 @@ public abstract class YamlStaticConfig {
 	 */
 	private static YamlConfig TEMPORARY_INSTANCE;
 
+	private final String canonical = this.getClass().getCanonicalName();
+
 	/**
 	 * Internal use only: Create a new {@link YamlConfig} instance and link it to load fields via
 	 * reflection.
@@ -165,6 +170,11 @@ private void loadViaReflection() {
 		try {
 			this.preLoad();
 
+			final AutoStaticConfig ann = this.getClass().getAnnotation(AutoStaticConfig.class);
+			if (ann != null && ann.value()){
+				setNestedFields(this.getClass());
+			}
+
 			// Parent class if applicable.
 			if (YamlStaticConfig.class.isAssignableFrom(this.getClass().getSuperclass())) {
 				final Class<?> superClass = this.getClass().getSuperclass();
@@ -183,6 +193,49 @@ private void loadViaReflection() {
 		}
 	}
 
+	/**
+	 * Set all fields from the given class and from its nested classes to their correspondent values from the file.
+	 */
+	public void setNestedFields(Class<?> clazz){
+		if (clazz.getDeclaredClasses().length > 0){
+			for (Class<?> inner : clazz.getDeclaredClasses()){
+				setNestedFields(inner);
+			}
+		}
+		for (Field field : clazz.getDeclaredFields()){
+			AutoStaticConfig ann = field.getAnnotation(AutoStaticConfig.class);
+			if (!Modifier.isStatic(field.getModifiers())) continue;
+			if (ann != null && !ann.value()){
+				continue;
+			}
+
+			Class<?> decl = field.getDeclaringClass();
+			String path = (decl.getCanonicalName() + "." + getFormattedFieldName(field))
+					.replace(canonical + ".", "")
+					.replace(canonical, "");
+
+			field.setAccessible(true);
+			try {
+				field.set(this, TEMPORARY_INSTANCE.getBasedOnClass(path, field));
+			} catch (IllegalAccessException e) {
+				throw new RuntimeException(e);
+			}
+		}
+	}
+
+	/**
+	 * Get the name under which the value will be saved in the file.
+	 * Based on user-defined AutoConfig.format() and is Capital_Underscore by default.
+	 */
+	private String getFormattedFieldName(Field field) {
+		String name = ChatUtil.upperToCapitalUnderscore(field.getName());
+		AutoStaticConfig ann = this.getClass().getAnnotation(AutoStaticConfig.class);
+		if (ann != null && ann.format().length != 0){
+			name = CaseFormat.UPPER_UNDERSCORE.to(ann.format()[0], field.getName());
+		}
+		return name;
+	}
+
 	/*
 	 * Invoke all "private static void init()" methods in the class and its subclasses
 	 */
@@ -202,7 +255,7 @@ private void invokeMethodsIn(final Class<?> clazz) throws Exception {
 
 		for (final Method method : clazz.getDeclaredMethods()) {
 
-			// After each invocation check if the invoication broke the plugin and ignore
+			// After each invocation check if the invocation broke the plugin and ignore
 			if (!instance.isEnabled())
 				return;