diff --git a/backend/components/AdminMenuStructure.php b/backend/components/AdminMenuStructure.php
index 144bc11..5ebda9a 100644
--- a/backend/components/AdminMenuStructure.php
+++ b/backend/components/AdminMenuStructure.php
@@ -235,6 +235,28 @@ class AdminMenuStructure
             ];
 
 
+            /////////////////////////////
+            // Group Training
+            /////////////////////////////
+            $items = [];
+//                $items[] = ['label' => 'Felszerelés', 'url' => ['/event-equipment-type'], 'role' => [RoleDefinition::$ROLE_ADMIN]];
+            $items[] = [
+                'label' => 'Beállítások',
+                'url' => ['/settings/index'],
+                'role' => [
+                    RoleDefinition::$ROLE_ADMIN,
+                ]
+            ];
+            $this->menuItems[] = [
+                'label' => 'Beállítások',
+                'url' => $this->emptyUrl,
+                'items' => $items,
+                'role' => [
+                    RoleDefinition::$ROLE_ADMIN
+                ]
+            ];
+
+
             /////////////////////////////
             // Development
             /////////////////////////////
diff --git a/backend/controllers/SettingsController.php b/backend/controllers/SettingsController.php
new file mode 100644
index 0000000..307407d
--- /dev/null
+++ b/backend/controllers/SettingsController.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace backend\controllers;
+
+use common\helpers\AppArrayHelper;
+use common\manager\PropertySettingsManager;
+use common\models\PropertySettingModel;
+
+class SettingsController extends BackendController
+{
+
+    public function behaviors()
+    {
+        return [
+            'access' => [
+                'class' => \yii\filters\AccessControl::class,
+                'rules' => [
+                    // allow authenticated users
+                    [
+                        'actions' => [
+                            'index',
+                        ],
+                        'allow' => true,
+                        'roles' => [
+                            'admin',
+                            'employee',
+                            'reception'
+                        ]
+                    ]
+                ]
+                // everything else is denied
+
+            ]
+        ];
+    }
+
+    /**
+     * Lists all Ticket models.
+     *
+     * @return mixed
+     */
+    public function actionIndex()
+    {
+        $settingsManager = new PropertySettingsManager();
+        $settings = $settingsManager->getPropertySettings();
+        $settingsMap = AppArrayHelper::objectArrayToMap($settings,
+            function ($setting) {
+                return $setting->definition->id;
+            },
+            function ($setting) {
+                return $setting;
+            });
+
+        $models = AppArrayHelper::mapValues($settings, function ($item) {
+            return PropertySettingModel::fromPropertySetting($item);
+        }
+        );
+
+        if (\Yii::$app->request->isPost) {
+            PropertySettingModel::loadMultiple($models, \Yii::$app->request->post());
+
+           foreach ($models as $model){
+               if ( isset($settingsMap[$model->id_definition])){
+                   $setting = $settingsMap[$model->id_definition];
+                   $setting->setValue($model->value);
+               }
+           }
+
+           $settingsManager->saveSettings(array_values($settingsMap));
+        }
+        return $this->render('index', [
+            'settings' => $models
+        ]);
+    }
+
+
+}
diff --git a/backend/models/SettingsSearch.php b/backend/models/SettingsSearch.php
new file mode 100644
index 0000000..613923d
--- /dev/null
+++ b/backend/models/SettingsSearch.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace backend\models;
+
+use common\models\Property;
+use Yii;
+use yii\base\Model;
+use yii\data\ActiveDataProvider;
+use common\models\PropertyDefinition;
+
+/**
+ * PropertyDefinitionSearch represents the model behind the search form about `common\models\PropertyDefinition`.
+ */
+class SettingsSearch extends Model
+{
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+//            [['id'], 'integer'],
+//            [['name', 'label', 'type', 'config', 'created_at', 'updated_at'], 'safe'],
+        ];
+    }
+
+
+    /**
+     * Creates data provider instance with search query applied
+     *
+     *
+     * @return ActiveDataProvider
+     */
+    public function search()
+    {
+
+
+
+        return $dataProvider;
+    }
+}
diff --git a/backend/views/settings/index.php b/backend/views/settings/index.php
new file mode 100644
index 0000000..023bdf6
--- /dev/null
+++ b/backend/views/settings/index.php
@@ -0,0 +1,42 @@
+<?php
+/** @var common\models\PropertySettingModel[] $settings */
+
+use yii\helpers\Html;
+use yii\widgets\ActiveForm;
+
+
+?>
+
+
+<div class="room-form">
+
+    <?php $form = ActiveForm::begin(); ?>
+
+    <?php
+    $index = 0;
+    foreach ($settings as $setting) {
+
+        ?>
+
+        <div class="row">
+            <div class="col-lg-3">
+                <?= $setting->label . ":" ?>
+            </div>
+            <div class="col-lg-3">
+                <?= $form->field($setting, "[$index]value")->textInput(['maxlength' => true, 'label' => false])->label(false) ?>
+            </div>
+
+        </div>
+
+        <?php
+        $index++;
+    } ?>
+
+
+    <div class="form-group">
+        <?= Html::submitButton("Mentés", ['class' => 'btn btn-primary']) ?>
+    </div>
+
+    <?php ActiveForm::end(); ?>
+
+</div>
diff --git a/common/helpers/AppArrayHelper.php b/common/helpers/AppArrayHelper.php
index 7dc2598..f489d17 100644
--- a/common/helpers/AppArrayHelper.php
+++ b/common/helpers/AppArrayHelper.php
@@ -7,6 +7,14 @@ class AppArrayHelper
 {
 
 
+    public static function mapValues($array, $func){
+        $result = [];
+        foreach ($array as $item){
+            $result[] = $func($item);
+        }
+        return $result;
+    }
+
     public static function  objectArrayToMap($array, $funcGetId, $funcGetValue){
         $result = [];
 
@@ -37,4 +45,11 @@ class AppArrayHelper
         );
     }
 
+    public static function getOrDefault($array, $key, $defaultValue = null){
+        if ( isset($array[$key])){
+            return $array[$key];
+        }
+        return $defaultValue;
+    }
+
 }
diff --git a/common/manager/EventRegistrationManager.php b/common/manager/EventRegistrationManager.php
index e160c8c..41b86af 100644
--- a/common/manager/EventRegistrationManager.php
+++ b/common/manager/EventRegistrationManager.php
@@ -3,11 +3,13 @@
 namespace common\manager;
 
 use common\components\Helper;
+use common\helpers\AppArrayHelper;
 use common\models\Card;
 use common\models\CardEventRegistrationForm;
 use common\models\Customer;
 use common\models\Event;
 use common\models\EventRegistration;
+use common\models\PropertyDefinition;
 use common\models\Ticket;
 use customerapi\models\available\EventInterval;
 use customerapi\models\registrations\EventRegistrationAvailable;
@@ -247,7 +249,12 @@ class EventRegistrationManager extends BaseObject
 
         if ($reason == EventRegistration::CANCEL_REASON_CUSTOMER) {
             $timeUntilEventStart = $event->start - $now;
-            if ($timeUntilEventStart < Helper::getGroupTrainingRegistrationCancelLimitMinutes() * 60) {
+            $settingsManager = new PropertySettingsManager();
+            $limitMinutes = $settingsManager->getSetting(
+                PropertyDefinition::DEFINITION_GROUP_TRAINING_CUSTOMER_CANCEL_TIME_LIMIT,
+                Helper::getGroupTrainingRegistrationCancelLimitMinutes()
+            );
+            if ($timeUntilEventStart <= $limitMinutes* 60) {
                 throw new BadRequestHttpException('The reservation can\'t be deleted', self::CANCEL_TIME_LIMIT_REACHED);
             }
         }
diff --git a/common/manager/PropertySettingsManager.php b/common/manager/PropertySettingsManager.php
new file mode 100644
index 0000000..cce5203
--- /dev/null
+++ b/common/manager/PropertySettingsManager.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace common\manager;
+
+use common\helpers\AppArrayHelper;
+use common\models\Property;
+use common\models\PropertyDefinition;
+use common\models\PropertySetting;
+use common\models\PropertySettingModel;
+
+class PropertySettingsManager
+{
+
+    /**
+     * @return PropertySetting[]
+     */
+    public function getPropertySettings()
+    {
+        $settings = [];
+        $definitions = PropertyDefinition::find()->all();
+        $properties = Property::find()->all();
+
+        $propertyByDefinition = AppArrayHelper::objectArrayToMap($properties,
+            function ($property) {
+                return $property->id_property_definition;
+            },
+            function ($property) {
+                return $property;
+            }
+        );
+
+        foreach ($definitions as $definition) {
+            $setting = new PropertySetting([
+                'property' => AppArrayHelper::getOrDefault($propertyByDefinition, $definition->id),
+                'definition' => $definition
+            ]);
+            $settings[] = $setting;
+        }
+        return $settings;
+    }
+
+    /**
+     * @param PropertySetting $setting
+     */
+    public function saveSetting($setting ){
+        Property::deleteAll(['id_property_definition' =>$setting->definition->id ]);
+        $setting->property->save(false);
+    }
+    /**
+     * @param PropertySetting[] $setting
+     */
+    public function saveSettings($settings ){
+        foreach ($settings as $setting){
+            Property::deleteAll(['id_property_definition' =>$setting->definition->id ]);
+            $setting->property->save(false);
+
+        }
+    }
+
+    public function getSettingsMap(){
+        $settings  = $this->getPropertySettings();
+        return AppArrayHelper::objectArrayToMap($settings,
+        function ($setting){
+            return $setting->definition->name;
+        },
+        function ($setting){
+            return $setting->getValue();
+        });
+    }
+
+    public function getSettingFromSettingsMap($settingsMap,$key,$defaultValue = null){
+        return  AppArrayHelper::getOrDefault(
+            $settingsMap,
+            $key,
+            $defaultValue
+        );
+    }
+
+    public function getSetting($key,$defaultValue = null){
+        $settingsMap = $this->getSettingsMap();
+        return $this->getSettingFromSettingsMap($settingsMap,$key,$defaultValue);
+    }
+
+
+
+}
diff --git a/common/models/Property.php b/common/models/Property.php
new file mode 100644
index 0000000..2d7064f
--- /dev/null
+++ b/common/models/Property.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace common\models;
+
+use Yii;
+
+/**
+ * This is the model class for table "property".
+ *
+ * @property integer $id
+ * @property integer $id_user
+ * @property integer $id_property_definition
+ * @property string $value
+ * @property string $created_at
+ * @property string $updated_at
+ */
+class Property extends \yii\db\ActiveRecord
+{
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'property';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['id_user', 'id_property_definition'], 'integer'],
+            [['created_at', 'updated_at'], 'safe'],
+            [['value'], 'string', 'max' => 255]
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => 'ID',
+            'id_user' => 'Id User',
+            'id_property_definition' => 'Id Property Definition',
+            'value' => 'Value',
+            'created_at' => 'Created At',
+            'updated_at' => 'Updated At',
+        ];
+    }
+}
diff --git a/common/models/PropertyDefinition.php b/common/models/PropertyDefinition.php
new file mode 100644
index 0000000..ce6ae39
--- /dev/null
+++ b/common/models/PropertyDefinition.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace common\models;
+
+use Yii;
+
+/**
+ * This is the model class for table "property_definition".
+ *
+ * @property integer $id
+ * @property string $name
+ * @property string $label
+ * @property string $type
+ * @property string $config
+ * @property string $created_at
+ * @property string $updated_at
+ */
+class PropertyDefinition extends \yii\db\ActiveRecord
+{
+    const DEFINITION_GROUP_TRAINING_CUSTOMER_CANCEL_TIME_LIMIT = "GROUP_TRAINING_CUSTOMER_CANCEL_TIME_LIMIT";
+
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'property_definition';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['name', 'label', 'type'], 'required'],
+            [['created_at', 'updated_at'], 'safe'],
+            [['name', 'label', 'type'], 'string', 'max' => 100],
+            [['config'], 'string', 'max' => 255]
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => 'ID',
+            'name' => 'Name',
+            'label' => 'Label',
+            'type' => 'Type',
+            'config' => 'Config',
+            'created_at' => 'Created At',
+            'updated_at' => 'Updated At',
+        ];
+    }
+}
diff --git a/common/models/PropertySetting.php b/common/models/PropertySetting.php
new file mode 100644
index 0000000..d9f2255
--- /dev/null
+++ b/common/models/PropertySetting.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace common\models;
+
+use yii\base\BaseObject;
+
+/**
+ * @property \common\models\PropertyDefinition $definition
+ * @property \common\models\Property            $property
+ */
+class PropertySetting extends BaseObject
+{
+
+    public $definition;
+    public $property;
+
+    public function getValue(){
+        $value = null;
+        if ( isset($this->property)){
+            $value =  $this->property->value;
+        }
+        return $value;
+    }
+
+    public function setValue($value){
+
+//        @property integer $id
+//        * @property integer $id_user
+//        * @property integer $id_property_definition
+//        * @property string $value
+        $this->property = new Property(
+            [
+                'id_user' => \Yii::$app->user->id,
+                'id_property_definition' => $this->definition->id,
+                'value' => $value
+            ]
+        );
+    }
+
+    public function getLabel(){
+        return $this->definition->label;
+    }
+
+}
diff --git a/common/models/PropertySettingModel.php b/common/models/PropertySettingModel.php
new file mode 100644
index 0000000..ede74e8
--- /dev/null
+++ b/common/models/PropertySettingModel.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace common\models;
+
+use yii\base\Model;
+
+class PropertySettingModel extends Model
+{
+    public $id_definition;
+    public $value;
+    public $label;
+
+    public function rules()
+    {
+        return [
+            [['id_definition',"value"], 'required'],
+            [['id_definition',"value"], 'integer'],
+        ];
+    }
+
+    /**
+     * @param PropertySetting $setting
+     * @return PropertySettingModel
+     */
+    public static function fromPropertySetting($setting){
+        $result = new PropertySettingModel();
+        $result->value = $setting->getValue();
+        $result->label = $setting->getLabel();
+        $result->id_definition = $setting->definition->id;
+        return $result;
+    }
+
+
+}
diff --git a/console/migrations/m211011_050352_add_properties.php b/console/migrations/m211011_050352_add_properties.php
new file mode 100644
index 0000000..f72d440
--- /dev/null
+++ b/console/migrations/m211011_050352_add_properties.php
@@ -0,0 +1,67 @@
+<?php
+
+use yii\db\Migration;
+
+/**
+ * Class m211011_050352_add_properties
+ */
+class m211011_050352_add_properties extends Migration
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function safeUp()
+    {
+        $tableOptions = null;
+        if ($this->db->driverName === 'mysql') {
+            // http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
+            $tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
+        }
+
+        $this->createTable('{{%property_definition}}', [
+            'id' => $this->primaryKey(),
+            'name' => $this->string(100)->notNull(),
+            'label' => $this->string(100)->notNull(),
+            'type' => $this->string(100)->notNull(),
+            'config' => $this->string(),
+            'created_at' => $this->timestamp()->notNull(),
+            'updated_at' =>  $this->timestamp()->notNull(),
+        ], $tableOptions);
+
+        $this->createTable('{{%property}}', [
+            'id' => $this->primaryKey(),
+            'id_user' => $this->integer(11),
+            'id_property_definition' => $this->integer(11),
+            'value' => $this->string(),
+            'created_at' => $this->timestamp()->notNull(),
+            'updated_at' =>  $this->timestamp()->notNull(),
+        ], $tableOptions);
+
+
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function safeDown()
+    {
+        echo "m211011_050352_add_properties cannot be reverted.\n";
+
+        return false;
+    }
+
+    /*
+    // Use up()/down() to run migration code without a transaction.
+    public function up()
+    {
+
+    }
+
+    public function down()
+    {
+        echo "m211011_050352_add_properties cannot be reverted.\n";
+
+        return false;
+    }
+    */
+}
diff --git a/console/migrations/m211011_052008_add_property_group_training_customer_cancel_interval.php b/console/migrations/m211011_052008_add_property_group_training_customer_cancel_interval.php
new file mode 100644
index 0000000..9262f54
--- /dev/null
+++ b/console/migrations/m211011_052008_add_property_group_training_customer_cancel_interval.php
@@ -0,0 +1,57 @@
+<?php
+
+use yii\db\Migration;
+
+/**
+ * Class m211011_052008_add_property_group_training_customer_cancel_interval
+ */
+class m211011_052008_add_property_group_training_customer_cancel_interval extends Migration
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function safeUp()
+    {
+        $this->insert("property_definition",
+        [
+            'name' => 'GROUP_TRAINING_CUSTOMER_CANCEL_TIME_LIMIT',
+            'label' => 'Csoportos edzés - lemondás idő korlát (perc):',
+            'type' => 'integer'
+        ]);
+
+        $insertId = Yii::$app->db->getLastInsertID();
+        $user = \common\models\User::find()->andWhere(['username' => 'admin'])->one();
+
+        $this->insert("property",[
+           'id_user' => $user->id,
+            'id_property_definition' => $insertId,
+            'value' => '60'
+
+        ]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function safeDown()
+    {
+        echo "m211011_052008_add_property_group_training_customer_cancel_interval cannot be reverted.\n";
+
+        return false;
+    }
+
+    /*
+    // Use up()/down() to run migration code without a transaction.
+    public function up()
+    {
+
+    }
+
+    public function down()
+    {
+        echo "m211011_052008_add_property_group_training_customer_cancel_interval cannot be reverted.\n";
+
+        return false;
+    }
+    */
+}