diff --git a/GeometryView.cpp b/GeometryView.cpp
index 00cdca4..a43b124 100644
--- a/GeometryView.cpp
+++ b/GeometryView.cpp
@@ -1036,13 +1036,23 @@ void GeometryView::arrow (glm::vec2 movement)
         glm::vec3 gl_delta = gl_Position_to - gl_Position_from;
 
         Group *sourceNode = s->group(mode_);
+        static glm::vec3 alt_move_ = sourceNode->translation_;
         if (UserInterface::manager().altModifier()) {
-            sourceNode->translation_ += glm::vec3(movement.x, -movement.y, 0.f) * 0.1f;
-            sourceNode->translation_.x = ROUND(sourceNode->translation_.x, 10.f);
-            sourceNode->translation_.y = ROUND(sourceNode->translation_.y, 10.f);
+            alt_move_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            sourceNode->translation_.x = ROUND(alt_move_.x, 10.f);
+            sourceNode->translation_.y = ROUND(alt_move_.y, 10.f);
         }
-        else
+        else {
             sourceNode->translation_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            alt_move_ = sourceNode->translation_;
+        }
+
+        // store action in history
+        std::ostringstream info;
+        info << "Position " << std::fixed << std::setprecision(3) << sourceNode->translation_.x;
+        info << ", "  << sourceNode->translation_.y ;
+        current_action_ = s->name() + ": " + info.str();
+        current_id_ = s->id();
 
         // request update
         s->touch();
diff --git a/LayerView.cpp b/LayerView.cpp
index 98e9eef..a827a57 100644
--- a/LayerView.cpp
+++ b/LayerView.cpp
@@ -9,6 +9,7 @@
 #include "ImGuiToolkit.h"
 
 #include <string>
+#include <sstream>
 #include <iomanip>
 
 #include "Mixer.h"
@@ -101,7 +102,7 @@ void LayerView::draw()
         if (candidate_flatten_group){
             if (ImGui::Selectable( ICON_FA_DOWNLOAD "  Flatten" )) {
                 Mixer::manager().groupSelection();
-//                Action::manager().store(std::string("Selection Flatten."), Mixer::selection().front()->id());
+                Action::manager().store(std::string("Selection Flatten."), Mixer::selection().front()->id());
             }
         }
         else {
@@ -315,13 +316,28 @@ void LayerView::arrow (glm::vec2 movement)
         glm::vec3 gl_Position_from = Rendering::manager().unProject(glm::vec2(0.f), scene.root()->transform_);
         glm::vec3 gl_Position_to   = Rendering::manager().unProject(glm::vec2(movement.x-movement.y, 0.f), scene.root()->transform_);
         glm::vec3 gl_delta = gl_Position_to - gl_Position_from;
-        if (UserInterface::manager().altModifier())
-            gl_delta *= 10.f;
 
         Group *sourceNode = s->group(mode_);
-        glm::vec3 dest_translation = sourceNode->translation_ + gl_delta * ARROWS_MOVEMENT_FACTOR;
+        glm::vec3 dest_translation = sourceNode->translation_;
+        static glm::vec3 alt_move_ = sourceNode->translation_;
+        if (UserInterface::manager().altModifier()) {
+            alt_move_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            dest_translation.x = ROUND(alt_move_.x, 10.f);
+            dest_translation.y = ROUND(alt_move_.y, 10.f);
+        }
+        else {
+            dest_translation += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            alt_move_ = dest_translation;
+        }
+
         setDepth( s,  MAX( -dest_translation.x, 0.f) );
 
+        // store action in history
+        std::ostringstream info;
+        info << "Depth " << std::fixed << std::setprecision(2) << s->depth() << "  ";
+        current_action_ = s->name() + ": " + info.str();
+        current_id_ = s->id();
+
         // request update
         s->touch();
     }
diff --git a/MixingView.cpp b/MixingView.cpp
index ee3b5df..86d02ad 100644
--- a/MixingView.cpp
+++ b/MixingView.cpp
@@ -473,13 +473,27 @@ void MixingView::arrow (glm::vec2 movement)
         glm::vec3 gl_delta = gl_Position_to - gl_Position_from;
 
         Group *sourceNode = s->group(mode_);
+        static glm::vec3 alt_move_ = sourceNode->translation_;
         if (UserInterface::manager().altModifier()) {
-            sourceNode->translation_ += glm::vec3(movement.x, -movement.y, 0.f) * 0.1f;
-            sourceNode->translation_.x = ROUND(sourceNode->translation_.x, 10.f);
-            sourceNode->translation_.y = ROUND(sourceNode->translation_.y, 10.f);
+            alt_move_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            sourceNode->translation_.x = ROUND(alt_move_.x, 10.f);
+            sourceNode->translation_.y = ROUND(alt_move_.y, 10.f);
+        }
+        else {
+            sourceNode->translation_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            alt_move_ = sourceNode->translation_;
+        }
+
+        // store action in history
+        std::ostringstream info;
+        if (s->active()) {
+            info << "Alpha " << std::fixed << std::setprecision(3) << s->blendingShader()->color.a << "  ";
+            info << ( (s->blendingShader()->color.a > 0.f) ? ICON_FA_EYE : ICON_FA_EYE_SLASH);
         }
         else
-            sourceNode->translation_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            info << "Inactive  " << ICON_FA_SNOWFLAKE;
+        current_action_ = s->name() + ": " + info.str();
+        current_id_ = s->id();
 
         // request update
         s->touch();
diff --git a/SessionCreator.cpp b/SessionCreator.cpp
index 08ccd04..0e55b2c 100644
--- a/SessionCreator.cpp
+++ b/SessionCreator.cpp
@@ -378,10 +378,11 @@ void SessionLoader::visit(Node &n)
 void SessionLoader::visit(MediaPlayer &n)
 {
     XMLElement* mediaplayerNode = xmlCurrent_->FirstChildElement("MediaPlayer");
-    uint64_t id__ = -1;
-    mediaplayerNode->QueryUnsigned64Attribute("id", &id__);
 
     if (mediaplayerNode) {
+        uint64_t id__ = -1;
+        mediaplayerNode->QueryUnsigned64Attribute("id", &id__);
+
         // timeline
         XMLElement *timelineelement = mediaplayerNode->FirstChildElement("Timeline");
         if (timelineelement) {
diff --git a/TextureView.cpp b/TextureView.cpp
index a97edfa..39d9e48 100644
--- a/TextureView.cpp
+++ b/TextureView.cpp
@@ -1317,13 +1317,23 @@ void TextureView::arrow (glm::vec2 movement)
         glm::vec3 gl_delta = gl_Position_to - gl_Position_from;
 
         Group *sourceNode = s->group(mode_);
+        static glm::vec3 alt_move_ = sourceNode->translation_;
         if (UserInterface::manager().altModifier()) {
-            sourceNode->translation_ += glm::vec3(movement.x, -movement.y, 0.f) * 0.1f;
-            sourceNode->translation_.x = ROUND(sourceNode->translation_.x, 10.f);
-            sourceNode->translation_.y = ROUND(sourceNode->translation_.y, 10.f);
+            alt_move_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            sourceNode->translation_.x = ROUND(alt_move_.x, 10.f);
+            sourceNode->translation_.y = ROUND(alt_move_.y, 10.f);
         }
-        else
+        else {
             sourceNode->translation_ += gl_delta * ARROWS_MOVEMENT_FACTOR;
+            alt_move_ = sourceNode->translation_;
+        }
+
+        // store action in history
+        std::ostringstream info;
+        info << "Texture Shift " << std::fixed << std::setprecision(3) << sourceNode->translation_.x;
+        info << ", "  << sourceNode->translation_.y ;
+        current_action_ = s->name() + ": " + info.str();
+        current_id_ = s->id();
 
         // request update
         s->touch();
@@ -1331,14 +1341,14 @@ void TextureView::arrow (glm::vec2 movement)
     else if (edit_source_) {
         if (edit_source_->maskShader()->mode == MaskShader::PAINT) {
             if (mask_cursor_paint_ > 0) {
-                glm::vec2 b = 0.05f * movement;
+                glm::vec2 b = 0.02f * movement;
                 Settings::application.brush.x = CLAMP(Settings::application.brush.x+b.x, BRUSH_MIN_SIZE, BRUSH_MAX_SIZE);
                 Settings::application.brush.y = CLAMP(Settings::application.brush.y+b.y, BRUSH_MIN_PRESS, BRUSH_MAX_PRESS);
             }
         }
         else if (edit_source_->maskShader()->mode == MaskShader::SHAPE) {
             if (mask_cursor_shape_ > 0) {
-                float b = -0.05 * movement.y;
+                float b = -0.02f * movement.y;
                 edit_source_->maskShader()->blur = CLAMP(edit_source_->maskShader()->blur+b, SHAPE_MIN_BLUR, SHAPE_MAX_BLUR);
                 edit_source_->touch();
             }
diff --git a/UserInterfaceManager.cpp b/UserInterfaceManager.cpp
index 20efc67..6779f5a 100644
--- a/UserInterfaceManager.cpp
+++ b/UserInterfaceManager.cpp
@@ -394,14 +394,21 @@ void UserInterface::handleKeyboard()
                     Mixer::manager().setCurrentNext();
             }
             // arrow keys to act on current view
-            else if (ImGui::IsKeyPressed( GLFW_KEY_LEFT ))
+            else if (ImGui::IsKeyDown( GLFW_KEY_LEFT ))
                 Mixer::manager().view()->arrow( glm::vec2(-1.f, 0.f) );
-            else if (ImGui::IsKeyPressed( GLFW_KEY_RIGHT ))
+            else if (ImGui::IsKeyDown( GLFW_KEY_RIGHT ))
                 Mixer::manager().view()->arrow( glm::vec2(+1.f, 0.f) );
-            else if (ImGui::IsKeyPressed( GLFW_KEY_UP ))
+            if (ImGui::IsKeyDown( GLFW_KEY_UP ))
                 Mixer::manager().view()->arrow( glm::vec2(0.f, -1.f) );
-            else if (ImGui::IsKeyPressed( GLFW_KEY_DOWN ))
+            else if (ImGui::IsKeyDown( GLFW_KEY_DOWN ))
                 Mixer::manager().view()->arrow( glm::vec2(0.f, 1.f) );
+
+            if (ImGui::IsKeyReleased( GLFW_KEY_LEFT ) ||
+                ImGui::IsKeyReleased( GLFW_KEY_RIGHT ) ||
+                ImGui::IsKeyReleased( GLFW_KEY_UP ) ||
+                ImGui::IsKeyReleased( GLFW_KEY_DOWN ) ){
+                Mixer::manager().view()->terminate();
+            }
         }
     }
 
diff --git a/defines.h b/defines.h
index 35ee9fc..1d11bd7 100644
--- a/defines.h
+++ b/defines.h
@@ -58,7 +58,7 @@
 #define TRANSITION_DEFAULT_SCALE 5.0f
 #define TRANSITION_MIN_DURATION 0.2f
 #define TRANSITION_MAX_DURATION 10.f
-#define ARROWS_MOVEMENT_FACTOR 5.f
+#define ARROWS_MOVEMENT_FACTOR 4.f
 
 #define IMGUI_TITLE_MAINWINDOW ICON_FA_CIRCLE_NOTCH "  vimix"
 #define IMGUI_TITLE_MEDIAPLAYER ICON_FA_FILM "  Player"