diff --git a/org.eclipse.ltk.core.refactoring/META-INF/MANIFEST.MF b/org.eclipse.ltk.core.refactoring/META-INF/MANIFEST.MF
index c9e1308b10c..a05bea453b1 100644
--- a/org.eclipse.ltk.core.refactoring/META-INF/MANIFEST.MF
+++ b/org.eclipse.ltk.core.refactoring/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Automatic-Module-Name: org.eclipse.ltk.core.refactoring
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.ltk.core.refactoring; singleton:=true
-Bundle-Version: 3.12.200.qualifier
+Bundle-Version: 3.13.0.qualifier
 Bundle-Activator: org.eclipse.ltk.internal.core.refactoring.RefactoringCorePlugin
 Bundle-ActivationPolicy: lazy
 Bundle-Vendor: %providerName
diff --git a/org.eclipse.ltk.core.refactoring/pom.xml b/org.eclipse.ltk.core.refactoring/pom.xml
index e844c3456f8..5906188bfc6 100644
--- a/org.eclipse.ltk.core.refactoring/pom.xml
+++ b/org.eclipse.ltk.core.refactoring/pom.xml
@@ -18,6 +18,6 @@
   </parent>
   <groupId>org.eclipse.ltk</groupId>
   <artifactId>org.eclipse.ltk.core.refactoring</artifactId>
-  <version>3.12.200-SNAPSHOT</version>
+  <version>3.13.0-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 </project>
diff --git a/org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/core/refactoring/CompositeChange.java b/org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/core/refactoring/CompositeChange.java
index aaf54e18e6a..dbc84628e34 100644
--- a/org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/core/refactoring/CompositeChange.java
+++ b/org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/core/refactoring/CompositeChange.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2015 IBM Corporation and others.
+ * Copyright (c) 2000, 2022 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -503,4 +503,24 @@ public String toString() {
 		}
 		return buff.toString();
 	}
+
+	/**
+	 * @return Amount of changed files
+	 * @since 3.13
+	 */
+	public int getFilenumber() {
+		if(fChanges.size()>0) {
+			if (fChanges.get(0) instanceof CompositeChange) {
+				CompositeChange obj= (CompositeChange) fChanges.get(0);
+				return obj.getAmount();
+			}
+			return 1;
+		}
+		return 0;
+	}
+
+	private int getAmount() {
+		return fChanges.size();
+	}
+
 }
diff --git a/org.eclipse.ltk.ui.refactoring/META-INF/MANIFEST.MF b/org.eclipse.ltk.ui.refactoring/META-INF/MANIFEST.MF
index d5dd0abde26..d6b20994d1d 100644
--- a/org.eclipse.ltk.ui.refactoring/META-INF/MANIFEST.MF
+++ b/org.eclipse.ltk.ui.refactoring/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Automatic-Module-Name: org.eclipse.ltk.ui.refactoring
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.ltk.ui.refactoring; singleton:=true
-Bundle-Version: 3.12.100.qualifier
+Bundle-Version: 3.12.200.qualifier
 Bundle-Activator: org.eclipse.ltk.internal.ui.refactoring.RefactoringUIPlugin
 Bundle-ActivationPolicy: lazy
 Bundle-Vendor: %providerName
diff --git a/org.eclipse.ltk.ui.refactoring/pom.xml b/org.eclipse.ltk.ui.refactoring/pom.xml
index de6a58a85e3..eb2eb2809eb 100644
--- a/org.eclipse.ltk.ui.refactoring/pom.xml
+++ b/org.eclipse.ltk.ui.refactoring/pom.xml
@@ -18,6 +18,6 @@
   </parent>
   <groupId>org.eclipse.ltk</groupId>
   <artifactId>org.eclipse.ltk.ui.refactoring</artifactId>
-  <version>3.12.100-SNAPSHOT</version>
+  <version>3.12.200-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 </project>
diff --git a/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/PreviewWizardPage.java b/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/PreviewWizardPage.java
index 41572e7f9ba..f233651d4ed 100644
--- a/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/PreviewWizardPage.java
+++ b/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/PreviewWizardPage.java
@@ -14,6 +14,7 @@
 package org.eclipse.ltk.internal.ui.refactoring;
 
 import java.text.Collator;
+import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -292,8 +293,7 @@ public void executed(Action action) {
 	 * Creates a new preview wizard page.
 	 */
 	public PreviewWizardPage() {
-		super(PAGE_NAME);
-		setDescription(RefactoringUIMessages.PreviewWizardPage_description);
+		this(false);
 	}
 
 	/**
@@ -305,7 +305,7 @@ public PreviewWizardPage() {
 	 */
 	public PreviewWizardPage(boolean wizard) {
 		super(PAGE_NAME, wizard);
-		setDescription(RefactoringUIMessages.PreviewWizardPage_description);
+		setDescription(RefactoringUIMessages.PreviewWizardPage_description_s);
 	}
 
 	/**
@@ -561,6 +561,12 @@ protected void setTreeViewerInput() {
 		PreviewNode input= null;
 		if (fTreeViewerInputChange != null) {
 			input= AbstractChangeNode.createNode(null, fTreeViewerInputChange);
+			int filenumber= fTreeViewerInputChange.getFilenumber();
+			String fullDescription= RefactoringUIMessages.PreviewWizardPage_description_s;
+			if (filenumber > 1) {
+				fullDescription= MessageFormat.format(RefactoringUIMessages.PreviewWizardPage_description_m, String.valueOf(filenumber));
+			}
+			setDescription(fullDescription);
 		}
 		fTreeViewer.setInput(input);
 	}
diff --git a/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java b/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java
index 1ef52953d85..456eabb332b 100644
--- a/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java
+++ b/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.java
@@ -124,7 +124,9 @@ public final class RefactoringUIMessages extends NLS {
 
 	public static String PreviewWizardPage_changes_filtered2;
 
-	public static String PreviewWizardPage_description;
+	public static String PreviewWizardPage_description_s;
+
+	public static String PreviewWizardPage_description_m;
 
 	public static String PreviewWizardPage_filterChanges;
 
diff --git a/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties b/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties
index 95e72084aa1..32ed890c708 100644
--- a/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties
+++ b/org.eclipse.ltk.ui.refactoring/src/org/eclipse/ltk/internal/ui/refactoring/RefactoringUIMessages.properties
@@ -63,8 +63,10 @@ PreviewWizardPage_changes_filter_derived=derived resources hidden
 PreviewWizardPage_hideDerived_text=&Hide derived resources
 PreviewWizardPage_refactoring= Refactoring
 PreviewWizardPage_Internal_error=An unexpected exception while creating a preview. See the error log for more details.
-PreviewWizardPage_description= The following changes are necessary to perform the refactoring.
+PreviewWizardPage_description_s= The following change to 1 file is necessary to perform the refactoring.
+PreviewWizardPage_description_m= The following changes to {0} files are necessary to perform the refactoring.
 PreviewWizardPage_changeElementLabelProvider_textFormat= {0} - {1}
+
 PreviewWizardPage_no_source_code_change=The refactoring does not change any source code.
 PreviewWizardPage_showAll_text=&Show All
 PreviewWizardPage_showAll_description=Show all changes