diff --git a/rtgui/lensgeomlistener.h b/rtgui/lensgeomlistener.h
index b9979f9a2..7f437c170 100644
--- a/rtgui/lensgeomlistener.h
+++ b/rtgui/lensgeomlistener.h
@@ -35,5 +35,4 @@ public:
     virtual void autoCropRequested   () = 0;
     virtual double autoDistorRequested () = 0;
     virtual void autoPerspRequested (bool corr_pitch, bool corr_yaw, double& rot, double& pitch, double& yaw, const std::vector<rtengine::ControlLine> *lines = nullptr) = 0;
-    virtual void updateTransformPreviewRequested (rtengine::ProcEvent event, bool render_perspective) = 0;
 };
diff --git a/rtgui/perspective.cc b/rtgui/perspective.cc
index b3fabd31a..8db91ee2e 100644
--- a/rtgui/perspective.cc
+++ b/rtgui/perspective.cc
@@ -543,6 +543,11 @@ void PerspCorrection::applyControlLines(void)
     adjusterChanged(camera_pitch, pitch);
 }
 
+void PerspCorrection::tweakParams(rtengine::procparams::ProcParams &pparams)
+{
+    pparams.perspective.render = render;
+}
+
 void PerspCorrection::autoCorrectionPressed(Gtk::Button* b)
 {
     if (!lens_geom_listener) {
@@ -754,8 +759,9 @@ void PerspCorrection::linesEditButtonPressed(void)
         lines->setActive(true);
         lines->setDrawMode(true);
         render = false;
-        if (lens_geom_listener) {
-            lens_geom_listener->updateTransformPreviewRequested(EvPerspRender, false);
+        if (listener) {
+            listener->setTweakOperator(this);
+            listener->refreshPreview(EvPerspRender);
         }
         lines_button_apply->set_sensitive(true);
         lines_button_erase->set_sensitive(true);
@@ -768,8 +774,9 @@ void PerspCorrection::linesEditButtonPressed(void)
         lines_button_apply->set_sensitive(false);
         lines_button_erase->set_sensitive(false);
         render = true;
-        if (lens_geom_listener) {
-            lens_geom_listener->updateTransformPreviewRequested(EvPerspRender, true);
+        if (listener) {
+            listener->unsetTweakOperator(this);
+            listener->refreshPreview(EvPerspRender);
         }
         lines->setDrawMode(false);
         lines->setActive(false);
diff --git a/rtgui/perspective.h b/rtgui/perspective.h
index 3c677ba6e..6f4a4ff52 100644
--- a/rtgui/perspective.h
+++ b/rtgui/perspective.h
@@ -24,6 +24,7 @@
 #include "controllines.h"
 #include "lensgeomlistener.h"
 #include "toolpanel.h"
+#include "../rtengine/tweakoperator.h"
 
 class PerspCorrectionPanelListener
 {
@@ -34,6 +35,7 @@ public:
 };
 
 class PerspCorrection final :
+    public rtengine::TweakOperator,
     public ToolParamBlock,
     public AdjusterListener,
     public FoldableToolPanel
@@ -91,6 +93,7 @@ protected:
     const rtengine::FramesMetaData* metadata;
 
     void applyControlLines (void);
+    void tweakParams(rtengine::procparams::ProcParams &pparams) override;
     void setCamBasedEventsActive (bool active = true);
     void setFocalLengthValue (const rtengine::procparams::ProcParams* pparams, const rtengine::FramesMetaData* metadata);
 
diff --git a/rtgui/toolpanelcoord.cc b/rtgui/toolpanelcoord.cc
index 12e780cca..00fcb208d 100644
--- a/rtgui/toolpanelcoord.cc
+++ b/rtgui/toolpanelcoord.cc
@@ -1037,16 +1037,6 @@ double ToolPanelCoordinator::autoDistorRequested()
     return rtengine::ImProcFunctions::getAutoDistor(ipc->getInitialImage()->getFileName(), 400);
 }
 
-void ToolPanelCoordinator::updateTransformPreviewRequested(rtengine::ProcEvent event, bool render_perspective)
-{
-    if (!ipc) {
-        return;
-    }
-
-    ipc->beginUpdateParams()->perspective.render = render_perspective;
-    ipc->endUpdateParams(event);
-}
-
 void ToolPanelCoordinator::spotWBRequested(int size)
 {
 
diff --git a/rtgui/toolpanelcoord.h b/rtgui/toolpanelcoord.h
index 28bfed5ab..13686d6e3 100644
--- a/rtgui/toolpanelcoord.h
+++ b/rtgui/toolpanelcoord.h
@@ -321,7 +321,6 @@ public:
     void autoCropRequested () override;
     void autoPerspRequested (bool corr_pitch, bool corr_yaw, double& rot, double& pitch, double& yaw, const std::vector<rtengine::ControlLine> *lines = nullptr) override;
     double autoDistorRequested () override;
-    void updateTransformPreviewRequested (rtengine::ProcEvent event, bool render_perspective) override;
 
     // spotwblistener interface
     void spotWBRequested (int size) override;