diff --git a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 594092b165..3886a16c63 100644
--- a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 3ffcb3fe6f..2688fb3ac3 100644
--- a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 3ffcb3fe6f..2688fb3ac3 100644
--- a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 3ffcb3fe6f..2688fb3ac3 100644
--- a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 3ffcb3fe6f..2688fb3ac3 100644
--- a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters
diff --git a/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/instancezone/Instance.java b/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
index 9cd0c11025..171a6198ec 100644
--- a/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
+++ b/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/instancezone/Instance.java
@@ -173,6 +173,16 @@ public class Instance implements IIdentifiable, INamable
 		}
 	}
 	
+	/**
+	 * Set instance world parameter.
+	 * @param key parameter name
+	 * @param value parameter value
+	 */
+	public void setParameter(String key, boolean value)
+	{
+		_parameters.set(key, value ? Boolean.TRUE : Boolean.FALSE);
+	}
+	
 	/**
 	 * Get instance world parameters.
 	 * @return instance parameters