diff --git a/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/ArgumentUtilities.java b/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/ArgumentUtilities.java
index a7c7d9d..d754cac 100644
--- a/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/ArgumentUtilities.java
+++ b/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/ArgumentUtilities.java
@@ -8,8 +8,8 @@ public class ArgumentUtilities
 {
 	public static class OptionalParams
 	{
-		public Integer     expirience;
 		public Destination destination;
+		public Integer     expirience;
 		public Integer     lifetime;
 	}
 	public static OptionalParams parseCommandParams(String[] args) throws CommandAnswerException
@@ -23,9 +23,17 @@ public class ArgumentUtilities
 				throw new CommandAnswerException("RequiresOneMoreArg");
 			switch(args[index].toLowerCase())
 			{
-				case "e":
-				case "exp":
+				case "destination":
+				case "dest":
+				case "d":
+					index += 1;
+					if(args[index] == null || "".equals(args[index]))
+						throw new CommandAnswerException("NotEnoughArguments: args #" + index);
+					result.destination = Destination.parseDestination(args[index]);
+					break;
 				case "expirience":
+				case "exp":
+				case "e":
 					try
 					{
 						index += 1;
@@ -36,16 +44,8 @@ public class ArgumentUtilities
 						throw new CommandAnswerException("NullPointerException: args #" + index);
 					}
 					break;
-				case "d":
-				case "dest":
-				case "destination":
-					index += 1;
-					if(args[index] == null || "".equals(args[index]))
-						throw new CommandAnswerException("NotEnoughArguments: args #" + index);
-					result.destination = Destination.parseDestination(args[index]);
-					break;
-				case "l":
 				case "lifetime":
+				case "l":
 					index += 1;
 					result.lifetime = TimeIntervalParser.parseTimeInterval(args[index]);
 					if(result.lifetime < 0)
diff --git a/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/CommandEntity.java b/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/CommandEntity.java
index b859cb4..3f3f65c 100644
--- a/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/CommandEntity.java
+++ b/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/CommandEntity.java
@@ -1,11 +1,9 @@
 package ru.simsonic.rscPermissions.Bukkit.Commands;
 
-import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Map;
 import java.util.Set;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
@@ -18,15 +16,13 @@ import ru.simsonic.rscPermissions.API.RowPermission;
 import ru.simsonic.rscPermissions.Bukkit.BukkitUtilities;
 import ru.simsonic.rscPermissions.Bukkit.Commands.ArgumentUtilities.OptionalParams;
 import ru.simsonic.rscPermissions.BukkitPluginMain;
-import ru.simsonic.rscPermissions.Engine.Matchers;
 import ru.simsonic.rscPermissions.Engine.ResolutionResult;
 
-public class CommandEntity
+public class CommandEntity extends CommandEntityHelper
 {
-	private final BukkitPluginMain rscp;
 	CommandEntity(BukkitPluginMain plugin)
 	{
-		this.rscp = plugin;
+		super(plugin);
 	}
 	public static enum TargetType
 	{
@@ -81,6 +77,36 @@ public class CommandEntity
 			answer.add(line.replace("{:T}", typeId));
 		return answer;
 	}
+	public void listGroups(CommandSender sender) throws CommandAnswerException
+	{
+		if(sender.hasPermission("rscp.admin") == false)
+			throw new CommandAnswerException("Not enough permissions.");
+		final List<String>   answer = new ArrayList<>(16);
+		final Set<RowEntity> groups = rscp.internalCache.getKnownGroupObjects();
+		answer.add("There are following known groups in database:");
+		for(RowEntity group : groups)
+		{
+			final String details = showEntityDetails(group);
+			if(details != null)
+				answer.add(details);
+		}
+		throw new CommandAnswerException(answer);
+	}
+	public void listUsers(CommandSender sender) throws CommandAnswerException
+	{
+		if(sender.hasPermission("rscp.admin") == false)
+			throw new CommandAnswerException("Not enough permissions.");
+		final List<String>   answer = new LinkedList<>();
+		final Set<RowEntity> users  = rscp.internalCache.getKnownUserObjects();
+		answer.add("There are following known users in database:");
+		for(RowEntity user : users)
+		{
+			final String details = showEntityDetails(user);
+			if(details != null)
+				answer.add(details);
+		}
+		throw new CommandAnswerException(answer);
+	}
 	public void onCommandHub(CommandSender sender, TargetType type, String[] args) throws CommandAnswerException
 	{
 		if(sender.hasPermission("rscp.admin") == false)
@@ -300,287 +326,4 @@ public class CommandEntity
 		result.inheritance = new RowInheritance[] {};
 		return result;
 	}
-	public void listGroups(CommandSender sender) throws CommandAnswerException
-	{
-		if(sender.hasPermission("rscp.admin") == false)
-			throw new CommandAnswerException("Not enough permissions.");
-		final List<String>   answer = new ArrayList<>(16);
-		final Set<RowEntity> groups = rscp.internalCache.getKnownGroupObjects();
-		answer.add("There are following known groups in database:");
-		for(RowEntity group : groups)
-		{
-			final String details = showEntityDetails(group);
-			if(details != null)
-				answer.add(details);
-		}
-		throw new CommandAnswerException(answer);
-	}
-	public void listUsers(CommandSender sender) throws CommandAnswerException
-	{
-		if(sender.hasPermission("rscp.admin") == false)
-			throw new CommandAnswerException("Not enough permissions.");
-		final List<String>   answer = new LinkedList<>();
-		final Set<RowEntity> users  = rscp.internalCache.getKnownUserObjects();
-		answer.add("There are following known users in database:");
-		for(RowEntity user : users)
-		{
-			final String details = showEntityDetails(user);
-			if(details != null)
-				answer.add(details);
-		}
-		throw new CommandAnswerException(answer);
-	}
-	private String showEntityDetails(RowEntity entity)
-	{
-		final String name = entity.entity;
-		if("".equals(name))
-			return null;
-		final StringBuilder sb = new StringBuilder();
-		if(entity.splittedId != null)
-			sb.append("{_WH}").append(entity.splittedId).append(" ");
-		sb.append("{_YL}").append(name);
-		final boolean isPrefix = entity.prefix != null && !"".equals(entity.prefix);
-		final boolean isSuffix = entity.suffix != null && !"".equals(entity.suffix);
-		if(isPrefix || isSuffix)
-			sb
-				.append("{_R} {_LS}[\'")
-				.append(isPrefix ? entity.prefix : "")
-				.append("{_LS}\', \'")
-				.append(isSuffix ? entity.suffix : "")
-				.append("{_LS}\']");
-		if(entity.lifetime != null)
-		{
-			final String lifetime = entity.lifetime
-				.toLocalDateTime()
-				.format(DateTimeFormatter.ISO_LOCAL_DATE_TIME)
-				.replace("T", " ");
-			sb.append("{_R} {_YL}").append(lifetime);
-		}
-		if(entity.permissions != null && entity.permissions.length > 0)
-			sb.append(String.format("{_R} {_LC}%d{_DC}p", entity.permissions.length));
-		if(entity.inheritance != null && entity.inheritance.length > 0)
-			sb.append(String.format("{_R} {_LC}%d{_DC}i", entity.inheritance.length));
-		return sb.toString();
-	}
-	private void showEntityPermissions(RowEntity entity)  throws CommandAnswerException
-	{
-		final ArrayList<String> answer = new ArrayList<>();
-		final String typeName = entity.entityType.name().toLowerCase();
-		answer.add("Explicit permissions for " + typeName + " {_YL}" + entity.entity + "{_LS}:");
-		for(RowPermission permission : entity.permissions)
-		{
-			final String details = showPermissionDetails(permission);
-			if(details != null)
-				answer.add(details);
-		}
-		throw new CommandAnswerException(answer);
-	}
-	private String showPermissionDetails(RowPermission row)
-	{
-		final StringBuilder sb = new StringBuilder();
-		sb.append("{_WH}").append(row.splittedId);
-		sb.append(row.value ? " {_LG}" : " {_LR}").append(row.permission);
-		if(row.destination != null)
-		{
-			final String destination = row.destination.toString();
-			if(!"".equals(destination))
-				sb.append("{_R} {_LC}{_U}").append(destination);
-		}
-		if(row.expirience > 0)
-			sb.append("{_R} {_LB}").append(row.expirience).append(" LVLs");
-		if(row.lifetime != null)
-		{
-			final String lifetime = row.lifetime.toLocalDateTime().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME).replace("T", " ");
-			sb.append("{_R} {_YL}").append(lifetime);
-		}
-		return sb.toString();
-	}
-	private void showEntityParents(RowEntity entity) throws CommandAnswerException
-	{
-		final ArrayList<String> answer = new ArrayList<>();
-		answer.add("Explicit parent groups for " + entity.entityType.name().toLowerCase() + " {_YL}" + entity.entity + "{_LS}:");
-		for(RowInheritance parent : entity.inheritance)
-		{
-			final String details = showInheritanceDetails(parent);
-			if(details != null)
-				answer.add(details);
-		}
-		throw new CommandAnswerException(answer);
-	}
-	private String showInheritanceDetails(RowInheritance row)
-	{
-		final StringBuilder sb = new StringBuilder();
-		sb.append("{_WH}").append(row.splittedId).append(" {_LG}").append(row.getParentWithInstance());
-		sb.append(String.format("{_R} {_DG}({_LG}%d{_DG})", row.priority));
-		if(row.destination != null)
-		{
-			final String destination = row.destination.toString();
-			if(!"".equals(destination))
-				sb.append("{_R} {_LC}{_U}").append(destination);
-		}
-		if(row.expirience > 0)
-			sb.append("{_R} {_LB}").append(row.expirience).append(" LVLs");
-		if(row.lifetime != null)
-		{
-			final String lifetime = row.lifetime.toLocalDateTime().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME).replace("T", " ");
-			sb.append("{_R} {_YL}").append(lifetime);
-		}
-		return sb.toString();
-	}
-	private void showPlayerPermissions(ResolutionResult result, String user) throws CommandAnswerException
-	{
-		if(Matchers.isCorrectDashlessUUID(user))
-			user = Matchers.uuidAddDashes(user);
-		final ArrayList<String> answer = new ArrayList<>();
-		answer.add("Permission list for user {_YL}" + user + "{_LS}:");
-		for(Map.Entry<String, Boolean> entry : result.getPermissions().entrySet())
-			answer.add((entry.getValue() ? "{_LG}" : "{_LR}") + entry.getKey());
-		throw new CommandAnswerException(answer);
-	}
-	private void showPlayerParents(ResolutionResult result, String player) throws CommandAnswerException
-	{
-		if(Matchers.isCorrectDashlessUUID(player))
-			player = Matchers.uuidAddDashes(player);
-		final ArrayList<String> answer = new ArrayList<>();
-		answer.add("List of parent groups for player {_YL}" + player + "{_LS}:");
-		for(String group : result.getOrderedGroups())
-			answer.add("{_LG}" + group);
-		throw new CommandAnswerException(answer);
-	}
-	private void showEntityPrefix(RowEntity entity) throws CommandAnswerException
-	{
-		if(entity.prefix != null)
-			throw new CommandAnswerException(String.format(
-				"Own prefix for %s {_YL}%s{_LS} is {_R}\"%s{_R}\"",
-				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
-				entity.entity,
-				entity.prefix));
-		throw new CommandAnswerException(String.format(
-				"Own prefix for %s {_YL}%s{_LS} is not set (null).",
-				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
-				entity.entity));
-	}
-	private void showEntitySuffix(RowEntity entity) throws CommandAnswerException
-	{
-		if(entity.suffix != null)
-			throw new CommandAnswerException(String.format(
-				"Own suffix for %s {_YL}%s{_LS} is {_R}\"%s{_R}\"",
-				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
-				entity.entity,
-				entity.suffix));
-		throw new CommandAnswerException(String.format(
-				"Own suffix for %s {_YL}%s{_LS} is not set (null).",
-				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
-				entity.entity));
-	}
-	private void showPlayerPrefix(ResolutionResult result, String user) throws CommandAnswerException
-	{
-		if(Matchers.isCorrectDashlessUUID(user))
-			user = Matchers.uuidAddDashes(user);
-		final ArrayList<String> answer = new ArrayList<>();
-		answer.add("Calculated prefix for user {_YL}" + user + "{_LS} is:");
-		answer.add("{_R}\"" + result.getPrefix() + "{_R}\"");
-		throw new CommandAnswerException(answer);
-	}
-	private void showPlayerSuffix(ResolutionResult result, String user) throws CommandAnswerException
-	{
-		if(Matchers.isCorrectDashlessUUID(user))
-			user = Matchers.uuidAddDashes(user);
-		final ArrayList<String> answer = new ArrayList<>();
-		answer.add("Calculated suffix for user {_YL}" + user + "{_LS} is:");
-		answer.add("{_R}\"" + result.getSuffix() + "{_R}\"");
-		throw new CommandAnswerException(answer);
-	}
-	private void addGroup(RowEntity entity, String parent, OptionalParams optional) throws CommandAnswerException
-	{
-		final String[]  splitted = RowInheritance.splitIntoNameAndInstance(parent);
-		final RowEntity existing = rscp.internalCache.findGroupEntity(splitted[0]);
-		if(existing != null)
-			parent = RowInheritance.mergeNameAndInstance(existing.entity, splitted[1]);
-		// final ArrayList<String> answer = new ArrayList<>();
-		final RowInheritance row = new RowInheritance();
-		row.entity     = entity.entity;
-		row.entityType = entity.entityType;
-		row.parent     = parent;
-		if(row.destination == null)
-			row.destination = optional.destination;
-		rscp.connection.addInheritance(row);
-		rscp.fetchNowAndReschedule();
-		throw new CommandAnswerException("{_LG}All is ok? I don't ready to check it myself.");
-	}
-	private void addPermission(RowEntity entity, String permission, OptionalParams optional) throws CommandAnswerException
-	{
-		// final ArrayList<String> answer = new ArrayList<>();
-		final RowPermission row = new RowPermission();
-		boolean negate = permission.startsWith("-");
-		if(negate)
-			permission = permission.substring(1);
-		row.entity     = entity.entity;
-		row.entityType = entity.entityType;
-		row.permission = permission;
-		row.value      = !negate;
-		if(row.destination == null)
-			row.destination = optional.destination;
-		rscp.connection.addPermission(row);
-		rscp.fetchNowAndReschedule();
-		throw new CommandAnswerException("{_LG}All is ok? I don't ready to check it myself.");
-	}
-	private void removeGroup(RowEntity entity, String whatToRemove) throws CommandAnswerException
-	{
-		final ArrayList<String> answer = new ArrayList<>();
-		// Find out what does entered identifier mean?
-		final LinkedList<RowInheritance> possibleTargets = new LinkedList<>();
-		for(RowInheritance row : entity.inheritance)
-		{
-			if(whatToRemove.equalsIgnoreCase(row.splittedId))
-			{
-				if(row.hasClonesInRow())
-					answer.add("{_LR}Cannot remove inheritance record {_WH}"
-						+ row.splittedId + "{_LR} from DB due to too complex initial data.");
-				else
-					possibleTargets.add(row);
-				continue;
-			}
-			if(whatToRemove.equalsIgnoreCase(row.getParentWithInstance()))
-				possibleTargets.add(row);
-		}
-		if(possibleTargets.isEmpty())
-			throw new CommandAnswerException("{_LR}Sorry, I don't understand what I have to remove from DB.");
-		if(possibleTargets.size() > 1)
-			throw new CommandAnswerException("{_LR}There are several possibilities what to remove. Please use unique white id.");
-		final RowInheritance row = possibleTargets.get(0);
-		rscp.connection.removeInheritanceById(row.id);
-		answer.add("{_LG}Successfully removed inheritance record {_WH}" + row.splittedId + "{_LG}!");
-		rscp.fetchNowAndReschedule();
-		throw new CommandAnswerException(answer);
-	}
-	private void removePermission(RowEntity entity, String whatToRemove) throws CommandAnswerException
-	{
-		final ArrayList<String> answer = new ArrayList<>();
-		// Find out what does entered identifier mean?
-		final LinkedList<RowPermission> possibleTargets = new LinkedList<>();
-		for(RowPermission row : entity.permissions)
-		{
-			if(whatToRemove.equalsIgnoreCase(row.splittedId))
-			{
-				if(row.hasClonesInRow())
-					answer.add("{_LR}Cannot remove inheritance record {_WH}"
-						+ row.splittedId + "{_LR} from DB due to too complex initial data.");
-				else
-					possibleTargets.add(row);
-				continue;
-			}
-			if(whatToRemove.equalsIgnoreCase(row.permission))
-				possibleTargets.add(row);
-		}
-		if(possibleTargets.isEmpty())
-			throw new CommandAnswerException("{_LR}Sorry, I don't understand what I should remove from DB.");
-		if(possibleTargets.size() > 1)
-			throw new CommandAnswerException("{_LR}There are several possibilities what to remove. Please use unique white id.");
-		final RowPermission row = possibleTargets.get(0);
-		rscp.connection.removePermissionsById(row.id);
-		answer.add("{_LG}Successfully removed inheritance record {_WH}" + row.splittedId + "{_LG}!");
-		rscp.fetchNowAndReschedule();
-		throw new CommandAnswerException(answer);
-	}
 }
diff --git a/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/CommandEntityHelper.java b/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/CommandEntityHelper.java
new file mode 100644
index 0000000..20d4501
--- /dev/null
+++ b/src/main/java/ru/simsonic/rscPermissions/Bukkit/Commands/CommandEntityHelper.java
@@ -0,0 +1,279 @@
+package ru.simsonic.rscPermissions.Bukkit.Commands;
+
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import org.bukkit.command.CommandSender;
+import ru.simsonic.rscMinecraftLibrary.Bukkit.CommandAnswerException;
+import ru.simsonic.rscPermissions.API.EntityType;
+import ru.simsonic.rscPermissions.API.RowEntity;
+import ru.simsonic.rscPermissions.API.RowInheritance;
+import ru.simsonic.rscPermissions.API.RowPermission;
+import ru.simsonic.rscPermissions.BukkitPluginMain;
+import ru.simsonic.rscPermissions.Engine.Matchers;
+import ru.simsonic.rscPermissions.Engine.ResolutionResult;
+
+public class CommandEntityHelper
+{
+	protected final BukkitPluginMain rscp;
+	CommandEntityHelper(BukkitPluginMain plugin)
+	{
+		this.rscp = plugin;
+	}
+	protected String showEntityDetails(RowEntity entity)
+	{
+		final String name = entity.entity;
+		if("".equals(name))
+			return null;
+		final StringBuilder sb = new StringBuilder();
+		if(entity.splittedId != null)
+			sb.append("{_WH}").append(entity.splittedId).append(" ");
+		sb.append("{_YL}").append(name);
+		final boolean isPrefix = entity.prefix != null && !"".equals(entity.prefix);
+		final boolean isSuffix = entity.suffix != null && !"".equals(entity.suffix);
+		if(isPrefix || isSuffix)
+			sb
+				.append("{_R} {_LS}[\'")
+				.append(isPrefix ? entity.prefix : "")
+				.append("{_LS}\', \'")
+				.append(isSuffix ? entity.suffix : "")
+				.append("{_LS}\']");
+		if(entity.lifetime != null)
+		{
+			final String lifetime = entity.lifetime
+				.toLocalDateTime()
+				.format(DateTimeFormatter.ISO_LOCAL_DATE_TIME)
+				.replace("T", " ");
+			sb.append("{_R} {_YL}").append(lifetime);
+		}
+		if(entity.permissions != null && entity.permissions.length > 0)
+			sb.append(String.format("{_R} {_LC}%d{_DC}p", entity.permissions.length));
+		if(entity.inheritance != null && entity.inheritance.length > 0)
+			sb.append(String.format("{_R} {_LC}%d{_DC}i", entity.inheritance.length));
+		return sb.toString();
+	}
+	protected void showEntityPermissions(RowEntity entity)  throws CommandAnswerException
+	{
+		final ArrayList<String> answer = new ArrayList<>();
+		final String typeName = entity.entityType.name().toLowerCase();
+		answer.add("Explicit permissions for " + typeName + " {_YL}" + entity.entity + "{_LS}:");
+		for(RowPermission permission : entity.permissions)
+		{
+			final String details = showPermissionDetails(permission);
+			if(details != null)
+				answer.add(details);
+		}
+		throw new CommandAnswerException(answer);
+	}
+	protected String showPermissionDetails(RowPermission row)
+	{
+		final StringBuilder sb = new StringBuilder();
+		sb.append("{_WH}").append(row.splittedId);
+		sb.append(row.value ? " {_LG}" : " {_LR}").append(row.permission);
+		if(row.destination != null)
+		{
+			final String destination = row.destination.toString();
+			if(!"".equals(destination))
+				sb.append("{_R} {_LC}{_U}").append(destination);
+		}
+		if(row.expirience > 0)
+			sb.append("{_R} {_LB}").append(row.expirience).append(" LVLs");
+		if(row.lifetime != null)
+		{
+			final String lifetime = row.lifetime.toLocalDateTime().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME).replace("T", " ");
+			sb.append("{_R} {_YL}").append(lifetime);
+		}
+		return sb.toString();
+	}
+	protected void showEntityParents(RowEntity entity) throws CommandAnswerException
+	{
+		final ArrayList<String> answer = new ArrayList<>();
+		answer.add("Explicit parent groups for " + entity.entityType.name().toLowerCase() + " {_YL}" + entity.entity + "{_LS}:");
+		for(RowInheritance parent : entity.inheritance)
+		{
+			final String details = showInheritanceDetails(parent);
+			if(details != null)
+				answer.add(details);
+		}
+		throw new CommandAnswerException(answer);
+	}
+	protected String showInheritanceDetails(RowInheritance row)
+	{
+		final StringBuilder sb = new StringBuilder();
+		sb.append("{_WH}").append(row.splittedId).append(" {_LG}").append(row.getParentWithInstance());
+		sb.append(String.format("{_R} {_DG}({_LG}%d{_DG})", row.priority));
+		if(row.destination != null)
+		{
+			final String destination = row.destination.toString();
+			if(!"".equals(destination))
+				sb.append("{_R} {_LC}{_U}").append(destination);
+		}
+		if(row.expirience > 0)
+			sb.append("{_R} {_LB}").append(row.expirience).append(" LVLs");
+		if(row.lifetime != null)
+		{
+			final String lifetime = row.lifetime.toLocalDateTime().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME).replace("T", " ");
+			sb.append("{_R} {_YL}").append(lifetime);
+		}
+		return sb.toString();
+	}
+	protected void showPlayerPermissions(ResolutionResult result, String user) throws CommandAnswerException
+	{
+		if(Matchers.isCorrectDashlessUUID(user))
+			user = Matchers.uuidAddDashes(user);
+		final ArrayList<String> answer = new ArrayList<>();
+		answer.add("Permission list for user {_YL}" + user + "{_LS}:");
+		for(Map.Entry<String, Boolean> entry : result.getPermissions().entrySet())
+			answer.add((entry.getValue() ? "{_LG}" : "{_LR}") + entry.getKey());
+		throw new CommandAnswerException(answer);
+	}
+	protected void showPlayerParents(ResolutionResult result, String player) throws CommandAnswerException
+	{
+		if(Matchers.isCorrectDashlessUUID(player))
+			player = Matchers.uuidAddDashes(player);
+		final ArrayList<String> answer = new ArrayList<>();
+		answer.add("List of parent groups for player {_YL}" + player + "{_LS}:");
+		for(String group : result.getOrderedGroups())
+			answer.add("{_LG}" + group);
+		throw new CommandAnswerException(answer);
+	}
+	protected void showEntityPrefix(RowEntity entity) throws CommandAnswerException
+	{
+		if(entity.prefix != null)
+			throw new CommandAnswerException(String.format(
+				"Own prefix for %s {_YL}%s{_LS} is {_R}\"%s{_R}\"",
+				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
+				entity.entity,
+				entity.prefix));
+		throw new CommandAnswerException(String.format(
+				"Own prefix for %s {_YL}%s{_LS} is not set (null).",
+				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
+				entity.entity));
+	}
+	protected void showEntitySuffix(RowEntity entity) throws CommandAnswerException
+	{
+		if(entity.suffix != null)
+			throw new CommandAnswerException(String.format(
+				"Own suffix for %s {_YL}%s{_LS} is {_R}\"%s{_R}\"",
+				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
+				entity.entity,
+				entity.suffix));
+		throw new CommandAnswerException(String.format(
+				"Own suffix for %s {_YL}%s{_LS} is not set (null).",
+				entity.entityType.equals(EntityType.GROUP) ? "group" : "user",
+				entity.entity));
+	}
+	protected void showPlayerPrefix(ResolutionResult result, String user) throws CommandAnswerException
+	{
+		if(Matchers.isCorrectDashlessUUID(user))
+			user = Matchers.uuidAddDashes(user);
+		final ArrayList<String> answer = new ArrayList<>();
+		answer.add("Calculated prefix for user {_YL}" + user + "{_LS} is:");
+		answer.add("{_R}\"" + result.getPrefix() + "{_R}\"");
+		throw new CommandAnswerException(answer);
+	}
+	protected void showPlayerSuffix(ResolutionResult result, String user) throws CommandAnswerException
+	{
+		if(Matchers.isCorrectDashlessUUID(user))
+			user = Matchers.uuidAddDashes(user);
+		final ArrayList<String> answer = new ArrayList<>();
+		answer.add("Calculated suffix for user {_YL}" + user + "{_LS} is:");
+		answer.add("{_R}\"" + result.getSuffix() + "{_R}\"");
+		throw new CommandAnswerException(answer);
+	}
+	protected void addGroup(RowEntity entity, String parent, ArgumentUtilities.OptionalParams optional) throws CommandAnswerException
+	{
+		final String[]  splitted = RowInheritance.splitIntoNameAndInstance(parent);
+		final RowEntity existing = rscp.internalCache.findGroupEntity(splitted[0]);
+		if(existing != null)
+			parent = RowInheritance.mergeNameAndInstance(existing.entity, splitted[1]);
+		// final ArrayList<String> answer = new ArrayList<>();
+		final RowInheritance row = new RowInheritance();
+		row.entity     = entity.entity;
+		row.entityType = entity.entityType;
+		row.parent     = parent;
+		if(row.destination == null)
+			row.destination = optional.destination;
+		rscp.connection.addInheritance(row);
+		rscp.fetchNowAndReschedule();
+		throw new CommandAnswerException("{_LG}All is ok? I don't ready to check it myself.");
+	}
+	protected void addPermission(RowEntity entity, String permission, ArgumentUtilities.OptionalParams optional) throws CommandAnswerException
+	{
+		// final ArrayList<String> answer = new ArrayList<>();
+		final RowPermission row = new RowPermission();
+		boolean negate = permission.startsWith("-");
+		if(negate)
+			permission = permission.substring(1);
+		row.entity     = entity.entity;
+		row.entityType = entity.entityType;
+		row.permission = permission;
+		row.value      = !negate;
+		if(row.destination == null)
+			row.destination = optional.destination;
+		rscp.connection.addPermission(row);
+		rscp.fetchNowAndReschedule();
+		throw new CommandAnswerException("{_LG}All is ok? I don't ready to check it myself.");
+	}
+	protected void removeGroup(RowEntity entity, String whatToRemove) throws CommandAnswerException
+	{
+		final ArrayList<String> answer = new ArrayList<>();
+		// Find out what does entered identifier mean?
+		final LinkedList<RowInheritance> possibleTargets = new LinkedList<>();
+		for(RowInheritance row : entity.inheritance)
+		{
+			if(whatToRemove.equalsIgnoreCase(row.splittedId))
+			{
+				if(row.hasClonesInRow())
+					answer.add("{_LR}Cannot remove inheritance record {_WH}"
+						+ row.splittedId + "{_LR} from DB due to too complex initial data.");
+				else
+					possibleTargets.add(row);
+				continue;
+			}
+			if(whatToRemove.equalsIgnoreCase(row.getParentWithInstance()))
+				possibleTargets.add(row);
+		}
+		if(possibleTargets.isEmpty())
+			throw new CommandAnswerException("{_LR}Sorry, I don't understand what I have to remove from DB.");
+		if(possibleTargets.size() > 1)
+			throw new CommandAnswerException("{_LR}There are several possibilities what to remove. Please use unique white id.");
+		final RowInheritance row = possibleTargets.get(0);
+		rscp.connection.removeInheritanceById(row.id);
+		answer.add("{_LG}Successfully removed inheritance record {_WH}" + row.splittedId + "{_LG}!");
+		rscp.fetchNowAndReschedule();
+		throw new CommandAnswerException(answer);
+	}
+	protected void removePermission(RowEntity entity, String whatToRemove) throws CommandAnswerException
+	{
+		final ArrayList<String> answer = new ArrayList<>();
+		// Find out what does entered identifier mean?
+		final LinkedList<RowPermission> possibleTargets = new LinkedList<>();
+		for(RowPermission row : entity.permissions)
+		{
+			if(whatToRemove.equalsIgnoreCase(row.splittedId))
+			{
+				if(row.hasClonesInRow())
+					answer.add("{_LR}Cannot remove inheritance record {_WH}"
+						+ row.splittedId + "{_LR} from DB due to too complex initial data.");
+				else
+					possibleTargets.add(row);
+				continue;
+			}
+			if(whatToRemove.equalsIgnoreCase(row.permission))
+				possibleTargets.add(row);
+		}
+		if(possibleTargets.isEmpty())
+			throw new CommandAnswerException("{_LR}Sorry, I don't understand what I should remove from DB.");
+		if(possibleTargets.size() > 1)
+			throw new CommandAnswerException("{_LR}There are several possibilities what to remove. Please use unique white id.");
+		final RowPermission row = possibleTargets.get(0);
+		rscp.connection.removePermissionsById(row.id);
+		answer.add("{_LG}Successfully removed inheritance record {_WH}" + row.splittedId + "{_LG}!");
+		rscp.fetchNowAndReschedule();
+		throw new CommandAnswerException(answer);
+	}
+}