diff --git a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentEntry.java b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentEntry.java
new file mode 100644
index 0000000..3ebf63f
--- /dev/null
+++ b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentEntry.java
@@ -0,0 +1,34 @@
+package de.jcup.hijson.document;
+
+public class CommentEntry {
+
+    private String comment;
+
+    private int line;
+    private int column;
+
+    public int getLine() {
+        return line;
+    }
+
+    public void setLine(int line) {
+        this.line = line;
+    }
+
+    public int getColumn() {
+        return column;
+    }
+
+    public void setColumn(int column) {
+        this.column = column;
+    }
+    
+    public void setComment(String comment) {
+        this.comment=comment;
+    }
+
+    public String getComment() {
+        return comment;
+    }
+
+}
diff --git a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentHistory.java b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentHistory.java
new file mode 100644
index 0000000..2d2e8d7
--- /dev/null
+++ b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentHistory.java
@@ -0,0 +1,18 @@
+package de.jcup.hijson.document;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class CommentHistory {
+
+    
+   List<CommentEntry> list = new ArrayList<>();
+    
+    public void addComment(int line, int column, String comment) {
+        CommentEntry entry = new CommentEntry();
+        entry.setComment(comment);
+        entry.setLine(line);
+        entry.setColumn(column);
+    }
+
+}
diff --git a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentHistorySupport.java b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentHistorySupport.java
new file mode 100644
index 0000000..38bd173
--- /dev/null
+++ b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/CommentHistorySupport.java
@@ -0,0 +1,37 @@
+package de.jcup.hijson.document;
+
+public class CommentHistorySupport {
+    
+    private SimpleJsonFormatter simpleFormatter = new SimpleJsonFormatter();
+    
+    public CommentHistory ceateCommentHistory(String json) {
+        CommentHistory history = new CommentHistory();
+        /* FIXME de-jcup , 2023: handle comments hwich are in own line special: must be removed for line handling
+         * means simple formatter must have two ways of formatting... first the new line comments are contained, 
+         * afterwards remove those as well to get the target line numbers...  */
+        String jsonWithoutEmptyNewLines= simpleFormatter.formatJson(json);
+        String[] lines = jsonWithoutEmptyNewLines.split("\n");
+        
+        for (int lineNumber=0;lineNumber<lines.length;lineNumber++) {
+            String line = lines[lineNumber].trim();
+            int column = line.indexOf("//");
+            if (column!=-1) {
+                history.addComment(lineNumber, column, line.substring(column));
+            }
+        }
+        
+        return history;
+    }
+    
+    public String applyCommentsToFormattedJson(String json, CommentHistory history) {
+        StringBuilder sb=new StringBuilder();
+        String[] lines = json.split("\n");
+        for (int lineNumber=0;lineNumber<lines.length;lineNumber++) {
+            String line = lines[lineNumber];
+            /* FIXME de-jcup , 2023: implement add of comments which are NOT at the beginning */
+            /* FIXME de-jcup , 2023: implement add of comments which ARE at the beginning - means we got a special numbering mechanism here*/
+            sb.append(line).append('\n');
+        }
+        return sb.toString();
+    }
+}
diff --git a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/JSONFormatSupport.java b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/JSONFormatSupport.java
index 306d81c..bf11cae 100644
--- a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/JSONFormatSupport.java
+++ b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/JSONFormatSupport.java
@@ -40,6 +40,7 @@ public class JSONFormatSupport {
     private static String STRING_COLONS_NO_WHITESPACES_BEFORE_QUOTE=":\"";
     private static Pattern PATTERN_COLONS_NO_WHITESPACES_BEFORE_QUOTE= Pattern.compile(STRING_COLONS_NO_WHITESPACES_BEFORE_QUOTE);
     
+    
     public class FormatterResult {
         private String origin;
         private String formatted;
@@ -69,7 +70,7 @@ public FormatterResult(String origin, String formatted, FormatterResultState sta
         }
 
     }
-
+    
     public enum FormatterResultState {
 
         KEPT_AS_IS,
diff --git a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/SimpleJsonFormatter.java b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/SimpleJsonFormatter.java
new file mode 100644
index 0000000..fb309e2
--- /dev/null
+++ b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/document/SimpleJsonFormatter.java
@@ -0,0 +1,15 @@
+package de.jcup.hijson.document;
+
+import java.util.regex.Pattern;
+
+public class SimpleJsonFormatter {
+    
+    private static String STRING_PATTERN_SINGLE_LINE_REDUCE="(?m)^[ \t]*\r?\n";
+    private static Pattern PATTERN_SINGLE_LINE_REDUCE = Pattern.compile(STRING_PATTERN_SINGLE_LINE_REDUCE);
+
+    public String formatJson(String json) {
+        String formatted = json;
+        formatted= PATTERN_SINGLE_LINE_REDUCE.matcher(formatted).replaceAll("");
+        return formatted;
+    }
+}
diff --git a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/script/DefaultHighspeedJSONModelBuilder.java b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/script/DefaultHighspeedJSONModelBuilder.java
index ecc1fac..f660fe6 100644
--- a/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/script/DefaultHighspeedJSONModelBuilder.java
+++ b/highspeed-json-editor-plugin/src/main/java/de/jcup/hijson/script/DefaultHighspeedJSONModelBuilder.java
@@ -25,7 +25,6 @@
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.JsonToken;
 import com.fasterxml.jackson.core.json.JsonReadFeature;
-import com.fasterxml.jackson.databind.JsonNode;
 
 import de.jcup.hijson.outline.Item;
 import de.jcup.hijson.outline.ItemType;
diff --git a/highspeed-json-editor-plugin/src/test/java/de/jcup/hijson/document/SimpleJsonFormatterTest.java b/highspeed-json-editor-plugin/src/test/java/de/jcup/hijson/document/SimpleJsonFormatterTest.java
new file mode 100644
index 0000000..343a69d
--- /dev/null
+++ b/highspeed-json-editor-plugin/src/test/java/de/jcup/hijson/document/SimpleJsonFormatterTest.java
@@ -0,0 +1,50 @@
+package de.jcup.hijson.document;
+
+import static org.junit.Assert.*;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class SimpleJsonFormatterTest {
+
+    private SimpleJsonFormatter formatterToTest;
+
+    @Before
+    public void before() {
+        formatterToTest = new SimpleJsonFormatter();
+    }
+    
+    @Test
+    public void formatJson_reduces_lines() {
+        /* prepare */
+        /* @formatter:off */
+        String json = "{ // comment 0 is here\n" + 
+                "                    \n" + 
+                "                    // comment 1 is here\n" + 
+                "                    \n" + 
+                "                    \"a\" : \"value1\",\n" + 
+                "                    \n" + 
+                "                    \n" + 
+                "                    \"b\" : \"value2\", // comment2 is here\n" + 
+                "                    \"c\" : \"value3\"\n" + 
+                "                        \n" + 
+                "                    \n" + 
+                "            }";
+                
+            
+        /* execute */
+        String formatted = formatterToTest.formatJson(json);
+
+        /* test */
+        String expected = "{ // comment 0 is here\n" + 
+                "                    // comment 1 is here\n" + 
+                "                    \"a\" : \"value1\",\n" + 
+                "                    \"b\" : \"value2\", // comment2 is here\n" + 
+                "                    \"c\" : \"value3\"\n" + 
+                "            }";
+        /* @formatter:on */
+        
+        assertEquals(expected,formatted );
+    }
+
+}