diff --git a/app/SandboxSetup/beamerlocationgui.cpp b/app/SandboxSetup/beamerlocationgui.cpp
index 644e1decb4ec5e132cf39115ec0f67c3e3aec274..f0bc3a34c72ee32fbf49d0d055ddc2460153a5eb 100644
--- a/app/SandboxSetup/beamerlocationgui.cpp
+++ b/app/SandboxSetup/beamerlocationgui.cpp
@@ -48,7 +48,7 @@ void BeamerLocationGui::showEvent(QShowEvent *event){
     QWidget::showEvent(event);
 
     if(!isFullScreenInit){
-        winFullScreen->setGeometry(mg->getResolution());
+        winFullScreen->editGeometry(mg->getResolution());
     }
     crosses = beamer->getCrossList();
     startRoutine();
diff --git a/app/SandboxSetup/beamerlocationgui.ui b/app/SandboxSetup/beamerlocationgui.ui
index b414ddd0629a944f7961faa9d516ec6fab6e64d3..092fa9252624f9866ab7548d1cb7c79d96885ff0 100644
--- a/app/SandboxSetup/beamerlocationgui.ui
+++ b/app/SandboxSetup/beamerlocationgui.ui
@@ -16,7 +16,7 @@
   <widget class="QPushButton" name="btnLock">
    <property name="geometry">
     <rect>
-     <x>220</x>
+     <x>240</x>
      <y>570</y>
      <width>131</width>
      <height>51</height>
@@ -42,10 +42,10 @@
   <widget class="QTextEdit" name="txtInstructions">
    <property name="geometry">
     <rect>
-     <x>50</x>
+     <x>40</x>
      <y>360</y>
-     <width>521</width>
-     <height>181</height>
+     <width>541</width>
+     <height>201</height>
     </rect>
    </property>
    <property name="readOnly">
@@ -61,7 +61,7 @@ p, li { white-space: pre-wrap; }
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt; - Repeat this process 3 times for each cross you see (there will be 3 different crosses)&lt;/p&gt;
 &lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Note :&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt; - The cross will change from red to green when it detects the target.&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt; - The little square at the center will change from red to green when it detects the target.&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt; - For each point you validate, change the height of your target to not save the same position twice in the process.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
    </property>
   </widget>
diff --git a/app/SandboxSetup/camerafocus.cpp b/app/SandboxSetup/camerafocus.cpp
index 252850e695a6c001aff50022e32c94e9ec4213b1..73af3992223cc3e5b79f336ccdce92a714eac7bb 100644
--- a/app/SandboxSetup/camerafocus.cpp
+++ b/app/SandboxSetup/camerafocus.cpp
@@ -48,7 +48,7 @@ void CameraFocus::showEvent(QShowEvent *event){
 
     QWidget::showEvent(event);
     cv::Mat black = cv::Mat(1, 1, CV_8UC3, cv::Scalar(0, 0, 0));
-    blackScreen->setGeometry(mg->getResolution());
+    blackScreen->editGeometry(mg->getResolution());
     blackScreen->imShow(black);
     frameTimer->start(100);
 }
diff --git a/app/SandboxSetup/croppingmask.cpp b/app/SandboxSetup/croppingmask.cpp
index 0409417b42a0169aa65d23616e3cf5f5125bb52e..7d060c11b08a95f1c21a3c6d00806b8be424a11b 100644
--- a/app/SandboxSetup/croppingmask.cpp
+++ b/app/SandboxSetup/croppingmask.cpp
@@ -49,7 +49,7 @@ void CroppingMask::showEvent(QShowEvent *event){
     // show blue screen
     if(!blueScreenInitilized){
         blueScreenInitilized = true;
-        blueScreen->setGeometry(mg->getResolution());
+        blueScreen->editGeometry(mg->getResolution());
     }
     cv::Mat blueMat = cv::Mat(1, 1, CV_8UC3, cv::Scalar(0, 0, 255));
     blueScreen->imShow(blueMat);
diff --git a/app/SandboxSetup/mainwindow.cpp b/app/SandboxSetup/mainwindow.cpp
index 408cfa77bf85684a8939047c0a37f760f84e3d95..0f17b0dbc3c506b746eec5902a74710d21ab1d99 100644
--- a/app/SandboxSetup/mainwindow.cpp
+++ b/app/SandboxSetup/mainwindow.cpp
@@ -31,7 +31,7 @@ MainWindow::MainWindow(QWidget *parent) :
     for(SubApp* app : applist){
         connect(app, &SubApp::sendNotif, this, &MainWindow::receiveNotif);
     }
-
+    this->setFocusPolicy(Qt::StrongFocus);
 }
 
 MainWindow::~MainWindow()
diff --git a/app/SandboxSetup/mainwindow.ui b/app/SandboxSetup/mainwindow.ui
index 0b29eb8db97dd3062fe6ffb15b9c22f254ddec44..1bed0271cfb6027a6a18489b3fa480750749c02f 100644
--- a/app/SandboxSetup/mainwindow.ui
+++ b/app/SandboxSetup/mainwindow.ui
@@ -2,6 +2,9 @@
 <ui version="4.0">
  <class>MainWindow</class>
  <widget class="QMainWindow" name="MainWindow">
+  <property name="windowModality">
+   <enum>Qt::NonModal</enum>
+  </property>
   <property name="geometry">
    <rect>
     <x>0</x>
diff --git a/app/SandboxSetup/projectiongui.cpp b/app/SandboxSetup/projectiongui.cpp
index c7c8dcd70816d5fa2eca85e86a02e04c9b856fca..f2a9a46a8c0b14e3de262365720367f1555e70ad 100644
--- a/app/SandboxSetup/projectiongui.cpp
+++ b/app/SandboxSetup/projectiongui.cpp
@@ -42,7 +42,7 @@ void ProjectionGui::on_btnStart_clicked()
     if(!cameraUsed){
         // open blue screen on the selected output
         cv::Mat blue = cv::Mat(1, 1, CV_8UC3, cv::Scalar(0, 0, 255));
-        blueScreen->setGeometry(mg->getResolution());
+        blueScreen->editGeometry(mg->getResolution());
         blueScreen->imShow(blue);
         cameraUsed = true;
         frameTimer->start(100);
diff --git a/app/SandboxSetup/qtfullscreen.cpp b/app/SandboxSetup/qtfullscreen.cpp
index 62849ea85ba38889a84bf32904fcd574be04164d..e51a3c4f156d8855a887d570892615aab8720b83 100644
--- a/app/SandboxSetup/qtfullscreen.cpp
+++ b/app/SandboxSetup/qtfullscreen.cpp
@@ -1,35 +1,28 @@
 #include "qtfullscreen.h"
 
-QtFullScreen::QtFullScreen(QRect reso, bool _isBorderless, QWidget *parent) : QObject()
+QtFullScreen::QtFullScreen(QRect reso, bool _isBorderless, QWidget *parent) : QDialog(parent)
 {
-    p = parent;
+    image = new QLabel(this);
+    image->setScaledContents(true);
     resolution = new QRect(reso.left(), reso.top(), reso.width(), reso.height());
     isBorderless = _isBorderless;
-
-    win = new QDialog(parent);
-    win->setWindowFlags(Qt::Window);
-    win->setFocusPolicy(Qt::NoFocus);
-    win->setGeometry(*resolution);
-
-    image = new QLabel(win);
-    image->setGeometry(0, 0 , win->geometry().width(), win->geometry().height());
-    image->setScaledContents(true);
+    this->setAttribute(Qt::WA_ShowWithoutActivating);
+    editGeometry(*resolution);
 }
 
 QtFullScreen::~QtFullScreen()
 {
-    delete image;
-    delete win;
     delete resolution;
+    delete image;
 }
 
-void QtFullScreen::setGeometry(QRect reso){
-    setGeometry(reso.x(), reso.y(), reso.width(), reso.height());
+void QtFullScreen::editGeometry(QRect reso){
+    editGeometry(reso.x(), reso.y(), reso.width(), reso.height());
 }
 
 
-void QtFullScreen::setGeometry(int x, int y, int w, int h){
-    win->setGeometry(x, y, w, h);
+void QtFullScreen::editGeometry(int x, int y, int w, int h){
+    this->setGeometry(x, y, w, h);
     image->setGeometry(0 , 0, w, h);
 }
 
@@ -39,20 +32,11 @@ void QtFullScreen::imShow(cv::Mat frame){
     QPixmap px = QPixmap::fromImage(src);
     image->setPixmap(px);
 
-    if(!win->isVisible()){
+    if(!this->isVisible()){
         if(isBorderless){
-            win->showFullScreen();
+            this->showFullScreen();
         }else{
-            win->show();
+            this->show();
         }
     }
-
-    if(p != nullptr)
-        p->setFocus();
-
-}
-
-void QtFullScreen::close(){
-    if(win->isVisible())
-        win->close();
 }
diff --git a/app/SandboxSetup/qtfullscreen.h b/app/SandboxSetup/qtfullscreen.h
index c42dd50609278f1ac477379825e2db735722a0ac..acf655a7a5406ac6c93a33b11bcd15c494106839 100644
--- a/app/SandboxSetup/qtfullscreen.h
+++ b/app/SandboxSetup/qtfullscreen.h
@@ -4,26 +4,22 @@
 #include <opencv2/opencv.hpp>
 #include <QWidget>
 #include <QLabel>
-#include <QScreen>
 #include <QDialog>
+#include <QTimer>
 
-class QtFullScreen : public QObject
+class QtFullScreen : public QDialog
 {
     Q_OBJECT
 public:
     explicit QtFullScreen(QRect resolution, bool isBorderless=false, QWidget *parent = nullptr);
     ~QtFullScreen();
     void imShow(cv::Mat frame);
-    void close();
-    void setGeometry(QRect resolution);
-    void setGeometry(int x, int y, int w, int h);
+    void editGeometry(QRect resolution);
+    void editGeometry(int x, int y, int w, int h);
 
 private:
-    QDialog *win;
     QLabel *image;
-    QScreen *screen;
     QRect *resolution;
-    QWidget *p;
     bool isBorderless = false;
 };