diff --git a/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTable.java b/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTable.java
index c39b68c..93fbe74 100644
--- a/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTable.java
+++ b/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTable.java
@@ -17,6 +17,8 @@
  */
 package ca.uqac.lif.cep.mtnp;
 
+import java.util.List;
+
 import ca.uqac.lif.cep.UniformProcessor;
 import ca.uqac.lif.mtnp.table.HardTable;
 import ca.uqac.lif.mtnp.table.TableEntry;
@@ -54,6 +56,19 @@ public UpdateTable(int in_arity, String ... column_names)
 		m_table = new HardTable(column_names);
 	}
 	
+	/**
+	 * Creates a new instance of the processor.
+	 * @param in_arity The input arity
+	 * @param column_names The names of the columns in the resulting table
+	 */
+	public UpdateTable(int in_arity, List<String> column_names)
+	{
+		super(in_arity, 1);
+		String[] col_names = new String[column_names.size()];
+		column_names.toArray(col_names);
+		m_table = new HardTable(col_names);
+	}
+	
 	/**
 	 * Creates a new instance of the processor.
 	 * @param in_arity The input arity
diff --git a/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTableMap.java b/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTableMap.java
index 7dedc3e..4289271 100644
--- a/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTableMap.java
+++ b/Mtnp/src/ca/uqac/lif/cep/mtnp/UpdateTableMap.java
@@ -1,6 +1,6 @@
 /*
     BeepBeep, an event stream processor
-    Copyright (C) 2008-2017 Sylvain Hallé
+    Copyright (C) 2008-2023 Sylvain Hallé
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as published
@@ -17,6 +17,7 @@
  */
 package ca.uqac.lif.cep.mtnp;
 
+import java.util.List;
 import java.util.Map;
 
 import ca.uqac.lif.mtnp.table.TableEntry;
@@ -32,6 +33,11 @@ public UpdateTableMap(String ... col_names)
 	{
 		super(1, col_names);
 	}
+	
+	public UpdateTableMap(List<String> col_names)
+	{
+		super(1, col_names);
+	}
 
   @Override
   protected boolean compute(Object[] inputs, Object[] outputs)
diff --git a/Tuples/src/ca/uqac/lif/cep/tuples/MergeScalars.java b/Tuples/src/ca/uqac/lif/cep/tuples/MergeScalars.java
index 5865693..d5c3618 100755
--- a/Tuples/src/ca/uqac/lif/cep/tuples/MergeScalars.java
+++ b/Tuples/src/ca/uqac/lif/cep/tuples/MergeScalars.java
@@ -1,6 +1,6 @@
 /*
     BeepBeep, an event stream processor
-    Copyright (C) 2008-2017 Sylvain Hallé
+    Copyright (C) 2008-2023 Sylvain Hallé
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as published
@@ -17,6 +17,7 @@
  */
 package ca.uqac.lif.cep.tuples;
 
+import java.util.List;
 import java.util.Set;
 
 import ca.uqac.lif.cep.Connector;
@@ -42,7 +43,7 @@ public class MergeScalars extends Function
 	/**
 	 * The names given to the attributes corresponding to each scalar
 	 */
-	protected String[] m_attributeNames;
+	protected final String[] m_attributeNames;
 	
 	protected FixedTupleBuilder m_builder;
 	
@@ -52,6 +53,17 @@ public MergeScalars(String ... names)
 		m_attributeNames = names;
 		m_builder = new FixedTupleBuilder(names);
 	}
+	
+	public MergeScalars(List<String> names)
+	{
+		super();
+		m_attributeNames = new String[names.size()];
+		for (int i = 0; i < names.size(); i++)
+		{
+			m_attributeNames[i] = names.get(i);
+		}
+		m_builder = new FixedTupleBuilder(m_attributeNames);
+	}
 
 	@Override
 	public void evaluate(Object[] inputs, Object[] outputs, Context context, EventTracker tracker)