diff --git a/brouter-core/src/main/java/btools/router/RoutingEngine.java b/brouter-core/src/main/java/btools/router/RoutingEngine.java
index 3ce2c46..6717c95 100644
--- a/brouter-core/src/main/java/btools/router/RoutingEngine.java
+++ b/brouter-core/src/main/java/btools/router/RoutingEngine.java
@@ -25,6 +25,11 @@ import btools.util.SortedHeap;
 import btools.util.StackSampler;
 
 public class RoutingEngine extends Thread {
+
+  public final static int BROUTER_ENGINEMODE_ROUTING = 0;
+  public final static int BROUTER_ENGINEMODE_SEED = 1;
+  public final static int BROUTER_ENGINEMODE_OTHER = 2;
+
   private NodesCache nodesCache;
   private SortedHeap<OsmPath> openSet = new SortedHeap<OsmPath>();
   private boolean finished = false;
@@ -37,6 +42,8 @@ public class RoutingEngine extends Thread {
   private int MAXNODES_ISLAND_CHECK = 500;
   private OsmNodePairSet islandNodePairs = new OsmNodePairSet(MAXNODES_ISLAND_CHECK);
 
+  private int engineMode = 0;
+
   private int MAX_STEPS_CHECK = 10;
 
   protected OsmTrack foundTrack = new OsmTrack();
@@ -73,12 +80,20 @@ public class RoutingEngine extends Thread {
 
   public RoutingEngine(String outfileBase, String logfileBase, File segmentDir,
                        List<OsmNodeNamed> waypoints, RoutingContext rc) {
+    this(0, outfileBase, logfileBase, segmentDir,
+                       waypoints, rc);
+  }
+
+  public RoutingEngine(int engineMode, String outfileBase, String logfileBase, File segmentDir,
+                       List<OsmNodeNamed> waypoints, RoutingContext rc) {
     this.segmentDir = segmentDir;
     this.outfileBase = outfileBase;
     this.logfileBase = logfileBase;
     this.waypoints = waypoints;
     this.infoLogEnabled = outfileBase != null;
     this.routingContext = rc;
+    this.engineMode = engineMode;
+
 
     File baseFolder = new File(routingContext.localFunction).getParentFile();
     baseFolder = baseFolder == null ? null : baseFolder.getParentFile();
@@ -138,6 +153,16 @@ public class RoutingEngine extends Thread {
   }
 
   public void doRun(long maxRunningTime) {
+    switch (engineMode) {
+      case BROUTER_ENGINEMODE_ROUTING: doRouting(maxRunningTime); break;
+      case BROUTER_ENGINEMODE_SEED: /* do nothing, handled the old way */ break;
+      case BROUTER_ENGINEMODE_OTHER: /* call others */ break;
+      default: doRouting(maxRunningTime); break;
+    }
+  }
+
+
+  public void doRouting(long maxRunningTime) {
     try {
       startTime = System.currentTimeMillis();
       long startTime0 = startTime;
diff --git a/brouter-routing-app/src/main/aidl/btools/routingapp/IBRouterService.aidl b/brouter-routing-app/src/main/aidl/btools/routingapp/IBRouterService.aidl
index ed1dde7..ee9c406 100644
--- a/brouter-routing-app/src/main/aidl/btools/routingapp/IBRouterService.aidl
+++ b/brouter-routing-app/src/main/aidl/btools/routingapp/IBRouterService.aidl
@@ -34,6 +34,7 @@ interface IBRouterService {
     //  "timode"          = turnInstructionMode [0=none, 1=auto-choose, 2=locus-style, 3=osmand-style, 4=comment-style, 5=gpsies-style, 6=orux-style, 7=locus-old-style] default 0
     //  "heading"         = angle (optional to give a route a start direction)
     //  "direction"       = angle (optional, used like "heading" on a recalculation request by Locus as start direction)
+    //  "engineMode"      = 0 (optional, no more modes defined at the moment)
 
     // return null if all ok and no path given, the track if ok and path given, an error message if it was wrong
     //        the resultas string when 'pathToFileResult' is null, this should be default when Android Q or later
diff --git a/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java b/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java
index 4d74130..be3de7d 100644
--- a/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java
+++ b/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java
@@ -141,13 +141,17 @@ public class BRouterWorker {
       }
     }
 
+    int engineMode = 0;
+    if (params.containsKey("engineMode")) {
+      engineMode = params.getInt("engineMode", 0);
+    }
 
     try {
       writeTimeoutData(rc);
     } catch (Exception e) {
     }
 
-    RoutingEngine cr = new RoutingEngine(null, null, segmentDir, waypoints, rc);
+    RoutingEngine cr = new RoutingEngine(engineMode, null, null, segmentDir, waypoints, rc);
     cr.quite = true;
     cr.doRun(maxRunningTime);
 
diff --git a/brouter-server/src/main/java/btools/server/RouteServer.java b/brouter-server/src/main/java/btools/server/RouteServer.java
index 60009f8..cd5cef3 100644
--- a/brouter-server/src/main/java/btools/server/RouteServer.java
+++ b/brouter-server/src/main/java/btools/server/RouteServer.java
@@ -191,8 +191,11 @@ public class RouteServer extends Thread implements Comparable<RouteServer> {
       if (wplist.size() < 10) {
         SuspectManager.nearRecentWps.add(wplist);
       }
+      int engineMode = 0;
       for (Map.Entry<String, String> e : params.entrySet()) {
-        if ("timode".equals(e.getKey())) {
+        if ("engineMode".equals(e.getKey())) {
+          engineMode = Integer.parseInt(e.getValue());
+        } else if ("timode".equals(e.getKey())) {
           rc.turnInstructionMode = Integer.parseInt(e.getValue());
         } else if ("heading".equals(e.getKey())) {
           rc.startDirection = Integer.valueOf(Integer.parseInt(e.getValue()));
@@ -210,7 +213,7 @@ public class RouteServer extends Thread implements Comparable<RouteServer> {
           }
         }
       }
-      cr = new RoutingEngine(null, null, serviceContext.segmentDir, wplist, rc);
+      cr = new RoutingEngine(engineMode, null, null, serviceContext.segmentDir, wplist, rc);
       cr.quite = true;
       cr.doRun(maxRunningTime);
 
diff --git a/docs/revisions.md b/docs/revisions.md
index 600cc0c..d8b5ac0 100644
--- a/docs/revisions.md
+++ b/docs/revisions.md
@@ -2,6 +2,18 @@
 
 (ZIP-Archives including APK, readme + profiles)
 
+### New last version
+
+Android
+
+- Add parameter dialog for profile
+
+Library
+
+- Add engineMode for future use
+- Minor bug fixes
+
+
 ### [brouter-1.7.0.zip](../brouter_bin/brouter-1.7.0.zip) (current revision, 29.04.2023)
 
 Android