diff --git a/src/stage/timeline/body-canvas-widget.cpp b/src/stage/timeline/body-canvas-widget.cpp
index 3711f3d39..9d0f5e79b 100644
--- a/src/stage/timeline/body-canvas-widget.cpp
+++ b/src/stage/timeline/body-canvas-widget.cpp
@@ -42,9 +42,6 @@
 
 #include "common/advice.hpp"
 #include "lib/util.hpp"
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-#include "lib/format-cout.hpp"
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
 
 //#include <algorithm>
 //#include <vector>
@@ -521,23 +518,6 @@ namespace timeline {
     adjust (rulerCanvas_, canvasWidth, rulerHeight);
     adjust (mainCanvas_, canvasWidth, max(0, totalHeight-rulerHeight));
   }
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-/// 
-/// 
-  void
-  BodyCanvasWidget::DEBUG_injectTrackLabel (cuString const& trackName, int startLine)
-  {
-    NOTREACHED ("debug code obsoleted by the new ViewHook concept");
-    ///////////////////////////TODO TOD-oh
-//  Gtk::Button* butt = Gtk::manage (new Gtk::Button{trackName});
-//  butt->signal_clicked().connect(
-//        [butt]{ cout << "|=="<<butt->get_label()<<endl; });
-//  
-//  uint x = rand() % 50;
-//  mainCanvas_.put (*butt, x, startLine);
-//  butt->show();
-  }
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
   
   TimelineCanvas&
   BodyCanvasWidget::getCanvas (int yPos)
diff --git a/src/stage/timeline/body-canvas-widget.hpp b/src/stage/timeline/body-canvas-widget.hpp
index f3a0183fe..f7099213e 100644
--- a/src/stage/timeline/body-canvas-widget.hpp
+++ b/src/stage/timeline/body-canvas-widget.hpp
@@ -134,9 +134,6 @@ namespace timeline {
       /** a way to get and possibly (re)compute the current TrackProfile */
       using ProfileGetter = std::function<TrackProfile&()>;
       ProfileGetter getProfile;
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-      void DEBUG_injectTrackLabel(cuString const& trackName, int startLine);
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
       
     protected: /* ==== Interface: ViewHook ===== */
       
diff --git a/src/stage/timeline/timeline-controller.cpp b/src/stage/timeline/timeline-controller.cpp
index f0699d987..78f519dde 100644
--- a/src/stage/timeline/timeline-controller.cpp
+++ b/src/stage/timeline/timeline-controller.cpp
@@ -44,9 +44,6 @@
 #include "stage/timeline/timeline-controller.hpp"
 #include "stage/timeline/track-presenter.hpp"
 #include "stage/timeline/marker-widget.hpp"
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-#include "stage/timeline/body-canvas-widget.hpp"
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
 
 //#include "stage/workspace/workspace-window.hpp"
 //#include "stage/ui-bus.hpp"
@@ -90,9 +87,6 @@ namespace timeline {
     , name_{identity.getSym()}    // fallback initialise name from human-readable ID symbol 
     , markers_{}
     , fork_{new TrackPresenter{trackID, nexus, layoutManager}}
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-    , DEBUG_canvas_{layoutManager.exposeCanvasForDebug()}
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
     { }
   
   
@@ -107,7 +101,7 @@ namespace timeline {
   {
     if (mark.idi.getSym() == "test" && this->fork_)
       {
-        this->fork_->injectDebugTrackLabels(DEBUG_canvas_);
+        this->fork_->injectDebugTrackLabels();
       }
     else // forward to default handler
       model::Controller::doMark (mark);
diff --git a/src/stage/timeline/timeline-controller.hpp b/src/stage/timeline/timeline-controller.hpp
index 809e276f4..5a0f0fa81 100644
--- a/src/stage/timeline/timeline-controller.hpp
+++ b/src/stage/timeline/timeline-controller.hpp
@@ -74,9 +74,6 @@ namespace timeline {
   class TrackPresenter;
   class TimelineLayout;
   class MarkerWidget;
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-  class BodyCanvasWidget;
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
   
   
   /**
@@ -124,7 +121,6 @@ namespace timeline {
     private:/* ===== Events ===== */
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
       virtual void doMark (GenNode const& mark)  override;
-      BodyCanvasWidget& DEBUG_canvas_;
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
       
     private:/* ===== Internals ===== */
diff --git a/src/stage/timeline/timeline-layout.hpp b/src/stage/timeline/timeline-layout.hpp
index e061ee3fd..aed802a13 100644
--- a/src/stage/timeline/timeline-layout.hpp
+++ b/src/stage/timeline/timeline-layout.hpp
@@ -128,9 +128,6 @@ namespace timeline {
       void installRootTrack (TrackHeadWidget&,TrackBody&);
       
       Gtk::WidgetPath getBodyWidgetPath()  const;
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-      BodyCanvasWidget& exposeCanvasForDebug() { return bodyCanvas_; }
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
       
       
     protected: /* ==== Interface: LayoutManager===== */
diff --git a/src/stage/timeline/track-body.cpp b/src/stage/timeline/track-body.cpp
index 1907eea0b..e7fba2cc6 100644
--- a/src/stage/timeline/track-body.cpp
+++ b/src/stage/timeline/track-body.cpp
@@ -89,9 +89,6 @@ namespace timeline {
   TrackBody::setTrackName (cuString& trackName)
   {
     TODO ("is the track name of any relevance for the TrackBody widget?");
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-    this->TODO_trackName_ = trackName;;
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
   }
   
   
diff --git a/src/stage/timeline/track-body.hpp b/src/stage/timeline/track-body.hpp
index 05a97fa62..d7843d2f2 100644
--- a/src/stage/timeline/track-body.hpp
+++ b/src/stage/timeline/track-body.hpp
@@ -146,9 +146,6 @@ namespace timeline {
           return rulers_;
         }
       
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-      uString TODO_trackName_;
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
     };
   
   
diff --git a/src/stage/timeline/track-presenter.cpp b/src/stage/timeline/track-presenter.cpp
index 764381404..20b889a3e 100644
--- a/src/stage/timeline/track-presenter.cpp
+++ b/src/stage/timeline/track-presenter.cpp
@@ -38,9 +38,6 @@
 #include "include/ui-protocol.hpp"
 #include "stage/timeline/track-presenter.hpp"
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-#include "stage/timeline/body-canvas-widget.hpp"
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
 #include "lib/format-cout.hpp"
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
 
@@ -86,11 +83,8 @@ namespace timeline {
   
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
   void
-  TrackPresenter::injectDebugTrackLabels(BodyCanvasWidget& bodyCanvas)
+  TrackPresenter::injectDebugTrackLabels()
   {
-    ///////////////////////////TODO TOD-oh
-//    bodyCanvas.DEBUG_injectTrackLabel (display_.body_.TODO_trackName_, display_.body_.startLine_ + display_.body_.contentOffset_);
-    ///////////////////////////TODO TOD-oh
     uint x = rand() % 50;
     uint y = 0;
     Gtk::Button* butt = Gtk::manage (new ViewHooked<Gtk::Button, Gtk::Widget>{display_.hookedAt(x,y), TODO_trackName_});
@@ -99,7 +93,7 @@ namespace timeline {
     butt->show();
     
     for (auto& subTrack : subFork_)
-      subTrack->injectDebugTrackLabels (bodyCanvas);
+      subTrack->injectDebugTrackLabels();
   }
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
   /**
diff --git a/src/stage/timeline/track-presenter.hpp b/src/stage/timeline/track-presenter.hpp
index 0d99e8e62..3c59f3514 100644
--- a/src/stage/timeline/track-presenter.hpp
+++ b/src/stage/timeline/track-presenter.hpp
@@ -66,9 +66,6 @@
 namespace stage  {
 namespace timeline {
   
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-  class BodyCanvasWidget;
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
   using std::vector;
   using std::unique_ptr;
   
@@ -204,7 +201,7 @@ namespace timeline {
       /** set up a binding to respond to mutation messages via UiBus */
       virtual void buildMutator (lib::diff::TreeMutator::Handle)  override;
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
-      void injectDebugTrackLabels(BodyCanvasWidget&);
+      void injectDebugTrackLabels();
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1201 : test/code... remove this
       uString TODO_trackName_;
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f49dcc027..74ac7a2bc 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -19428,7 +19428,7 @@
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1575667886287" ID="ID_1416159951" MODIFIED="1575845508415" TEXT="Umbau auf ein ViewHooked&lt;W&gt;">
+<node COLOR="#338800" CREATED="1575667886287" FOLDED="true" ID="ID_1416159951" MODIFIED="1582835881291" TEXT="Umbau auf ein ViewHooked&lt;W&gt;">
 <arrowlink COLOR="#e79332" DESTINATION="ID_1096729219" ENDARROW="Default" ENDINCLINATION="-1237;46;" ID="Arrow_ID_1348207622" STARTARROW="None" STARTINCLINATION="2421;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1575239353279" HGAP="53" ID="ID_777015627" MODIFIED="1575668026370" TEXT="statt frei stehendem ViewHook" VSHIFT="32">
@@ -19518,8 +19518,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1582503131945" ID="ID_1439869815" MODIFIED="1582833270452" TEXT="Problem Covarianz">
-<linktarget COLOR="#6c2232" DESTINATION="ID_1439869815" ENDARROW="Default" ENDINCLINATION="-760;97;" ID="Arrow_ID_655919678" SOURCE="ID_1081924103" STARTARROW="None" STARTINCLINATION="1660;0;"/>
+<node COLOR="#338800" CREATED="1582503131945" FOLDED="true" ID="ID_1439869815" MODIFIED="1582835809970" TEXT="Problem Covarianz">
+<linktarget COLOR="#66226c" DESTINATION="ID_1439869815" ENDARROW="Default" ENDINCLINATION="-760;97;" ID="Arrow_ID_655919678" SOURCE="ID_1081924103" STARTARROW="None" STARTINCLINATION="1660;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1582503148935" ID="ID_10487556" MODIFIED="1582503193549" TEXT="ViewHooked&lt;WiX&gt; f&#xfc;r ViewHook&lt;WID&gt; mit WiX &lt;: WID">
 <icon BUILTIN="info"/>
@@ -22119,8 +22119,8 @@
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1582503247986" ID="ID_1081924103" MODIFIED="1582833337026" TEXT="Problem Covarianz Clip vs Widget">
-<arrowlink COLOR="#6c2232" DESTINATION="ID_1439869815" ENDARROW="Default" ENDINCLINATION="-760;97;" ID="Arrow_ID_655919678" STARTARROW="None" STARTINCLINATION="1660;0;"/>
+<node COLOR="#338800" CREATED="1582503247986" ID="ID_1081924103" MODIFIED="1582835894937" TEXT="Problem Covarianz Clip vs Widget">
+<arrowlink COLOR="#66226c" DESTINATION="ID_1439869815" ENDARROW="Default" ENDINCLINATION="-760;97;" ID="Arrow_ID_655919678" STARTARROW="None" STARTINCLINATION="1660;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1582503411035" HGAP="45" ID="ID_1293494572" MODIFIED="1582503470645" TEXT="der Canvas braucht nur ein Widget, wir aber konstruieren einen Clip" VSHIFT="22">
 <richcontent TYPE="NOTE"><html>
@@ -22152,7 +22152,11 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1576974176981" ID="ID_1792139654" MODIFIED="1576975019591" TEXT="Kind-Widget-Offsets">
 <linktarget COLOR="#5e57bd" DESTINATION="ID_1792139654" ENDARROW="Default" ENDINCLINATION="-2065;214;" ID="Arrow_ID_1917645572" SOURCE="ID_178738138" STARTARROW="None" STARTINCLINATION="-949;44;"/>
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1576974190516" ID="ID_1324645925" MODIFIED="1576974196544" TEXT="welche Offsets treten konkret auf"/>
+<node CREATED="1576974190516" ID="ID_1324645925" MODIFIED="1582836038184" TEXT="welche Offsets treten konkret auf?"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1582835948615" ID="ID_75969285" MODIFIED="1582836030572" TEXT="Kind-Offsets sind falsch">
+<arrowlink COLOR="#d3384d" DESTINATION="ID_1855510589" ENDARROW="Default" ENDINCLINATION="-764;-101;" ID="Arrow_ID_1877663178" STARTARROW="None" STARTINCLINATION="570;60;"/>
+<icon BUILTIN="broken-line"/>
+</node>
 <node CREATED="1576974515950" ID="ID_1628336999" MODIFIED="1576974623765" TEXT="gibt es ein gemeinsames Koordinatensystem?">
 <arrowlink COLOR="#474293" DESTINATION="ID_1222461806" ENDARROW="Default" ENDINCLINATION="-912;90;" ID="Arrow_ID_890343372" STARTARROW="None" STARTINCLINATION="-1540;96;"/>
 <node CREATED="1576975245489" ID="ID_1473334633" MODIFIED="1576975295363" TEXT="es l&#xe4;uft auf &quot;nein&quot; hinaus....">
@@ -26522,7 +26526,8 @@
 <node CREATED="1567876413663" ID="ID_1376431800" MODIFIED="1567876429537" TEXT="alle Content-Labels erscheinen nach untern verschoben">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1567876430941" ID="ID_1855510589" MODIFIED="1567876437643" TEXT="Ursache untersuchen">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1567876430941" ID="ID_1855510589" MODIFIED="1582836000650" TEXT="Ursache untersuchen">
+<linktarget COLOR="#d3384d" DESTINATION="ID_1855510589" ENDARROW="Default" ENDINCLINATION="-764;-101;" ID="Arrow_ID_1877663178" SOURCE="ID_75969285" STARTARROW="None" STARTINCLINATION="570;60;"/>
 <icon BUILTIN="flag-pink"/>
 </node>
 </node>