diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8c2ba41932de7a652ebb357ecc380906f1077297..d4a3f237e2af836d20d1204a558b69f208afa2a4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -38,6 +38,7 @@ else()
     else()
         add_executable(stickers-renomator-2000
             ${PROJECT_SOURCES}
+            lineEditEventFilter.h
         )
     endif()
 endif()
diff --git a/lineEditEventFilter.h b/lineEditEventFilter.h
new file mode 100644
index 0000000000000000000000000000000000000000..d6ab5b37ab6ec2b99b86e4ce75a6b1a1b9460d12
--- /dev/null
+++ b/lineEditEventFilter.h
@@ -0,0 +1,31 @@
+#ifndef LINEEDITEVENTFILTER_H
+#define LINEEDITEVENTFILTER_H
+#include <QObject>
+#include <QLineEdit>
+#include <QKeyEvent>
+#include <QEvent>
+class LineEditEventFilter : public QObject
+{
+public:
+    explicit LineEditEventFilter(QLineEdit *parent) : QObject(parent)
+    {}
+
+    bool eventFilter(QObject *obj, QEvent *e)
+    {
+        switch (e->type())
+        {
+        case QEvent::KeyPress:
+        {
+            QKeyEvent *keyEvent = static_cast<QKeyEvent *>(e);
+            if (keyEvent->key() == Qt::Key_Escape)
+            {
+                reinterpret_cast<QLineEdit *>(parent())->clearFocus();
+            }
+            break;
+        }
+        }
+        // standard event processing
+        return QObject::eventFilter(obj, e);
+    }
+};
+#endif // LINEEDITEVENTFILTER_H
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 0b5bbd58fe42a6024f554045bd2271a54e95ec1d..77fec0b83b493840e1e66a8b03aca86b74c5f456 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -6,6 +6,7 @@
 #include <QFile>
 #include <QPixmap>
 #include <QKeyEvent>
+#include "lineEditEventFilter.h"
 
 MainWindow::MainWindow(QString dir, QWidget *parent)
     : QMainWindow(parent)
@@ -15,7 +16,11 @@ MainWindow::MainWindow(QString dir, QWidget *parent)
     MainWindow::setWindowTitle("Stickers Renomator 2000");
     ui->label_2->setScaledContents(false);
     connect(ui->lineEdit, SIGNAL(returnPressed()),this,SLOT(on_pushButton_clicked()));
+    connect(ui->defautPrefixEdit, SIGNAL(textEdited(const QString)), this, SLOT(on_defaultPrefixEdit_textEdited()));
     this->imageFolder = dir;
+    auto lineEditEventFilter = new LineEditEventFilter(ui->lineEdit);
+    ui->lineEdit->installEventFilter(lineEditEventFilter);
+    ui->lineEdit->setFocus();
 }
 
 MainWindow::~MainWindow()
@@ -88,53 +93,67 @@ void MainWindow::mousePressEvent(QMouseEvent *event)
 
 void MainWindow::on_pushButton_clicked()
 {
-    QString newName = ui->lineEdit->text();
-    QFile::rename(this->currentImagePath, this->imageFolder+"/"+newName+".png");
-    ui->lineEdit->setText("");
-    this->imageList[this->currentImageIndex] = newName+".png";
-    this->currentImageIndex++;
-    if(this->currentImageIndex>=this->imageList.size()) this->currentImageIndex = 0;
-    this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
-    ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
-    this->currentImage = QPixmap(this->currentImagePath);
-    setImage();
+    if(this->imageFolder != ""){
+        QString newName = ui->lineEdit->text();
+        QFile::rename(this->currentImagePath, this->imageFolder+"/"+newName+".png");
+        ui->lineEdit->setText(defaultPrefix);
+        this->imageList[this->currentImageIndex] = newName+".png";
+        this->currentImageIndex++;
+        if(this->currentImageIndex>=this->imageList.size()) this->currentImageIndex = 0;
+        this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
+        ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
+        this->currentImage = QPixmap(this->currentImagePath);
+        setImage();
+    }
 }
 
 
 void MainWindow::on_deleteButton_clicked()
 {
-    if(!QDir(this->imageFolder+"/deletedStickers").exists()){
+    if(this->imageFolder != ""){
+        if(!QDir(this->imageFolder+"/deletedStickers").exists()){
         QDir().mkdir(this->imageFolder+"/deletedStickers");
+        }
+        QFile::rename(this->currentImagePath, this->imageFolder+"/deletedStickers/"+this->imageList[this->currentImageIndex]);
+        this->imageList.removeAt(this->currentImageIndex);
+        this->currentImageIndex++;
+        if(this->currentImageIndex>=this->imageList.size()) this->currentImageIndex = 0;
+        this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
+        ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
+        this->currentImage = QPixmap(this->currentImagePath);
+        setImage();
     }
-    QFile::rename(this->currentImagePath, this->imageFolder+"/deletedStickers/"+this->imageList[this->currentImageIndex]);
-    this->imageList.removeAt(this->currentImageIndex);
-    this->currentImageIndex++;
-    if(this->currentImageIndex>=this->imageList.size()) this->currentImageIndex = 0;
-    this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
-    ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
-    this->currentImage = QPixmap(this->currentImagePath);
-    setImage();
 }
 
 
 void MainWindow::on_prev_clicked()
 {
-    this->currentImageIndex--;
-    if(this->currentImageIndex<0) this->currentImageIndex = this->imageList.size()-1;
-    this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
-    ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
-    this->currentImage = QPixmap(this->currentImagePath);
-    setImage();
+    if(this->imageFolder != ""){
+        this->currentImageIndex--;
+        if(this->currentImageIndex<0) this->currentImageIndex = this->imageList.size()-1;
+        this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
+        ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
+        this->currentImage = QPixmap(this->currentImagePath);
+        setImage();
+    }
 }
 
 
 void MainWindow::on_next_clicked()
 {
-    this->currentImageIndex++;
-    if(this->currentImageIndex>=this->imageList.size()) this->currentImageIndex = 0;
-    this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
-    ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
-    this->currentImage = QPixmap(this->currentImagePath);
-    setImage();
+    if(this->imageFolder != ""){
+        this->currentImageIndex++;
+        if(this->currentImageIndex>=this->imageList.size()) this->currentImageIndex = 0;
+        this->currentImagePath = this->imageFolder+"/"+this->imageList[this->currentImageIndex];
+        ui->label_3->setText("Nom actuel: "+this->imageList[this->currentImageIndex].split(".").at(0));
+        this->currentImage = QPixmap(this->currentImagePath);
+        setImage();
+    }
+}
+
+void MainWindow::on_defaultPrefixEdit_textEdited()
+{
+    defaultPrefix = ui->defautPrefixEdit->text();
+    ui->lineEdit->setText(defaultPrefix);
 }
 
diff --git a/mainwindow.h b/mainwindow.h
index accfcf5a4f575899df4a228d8ee82de0cf0ba240..326a0150c4faa5a3b9d1a9ac3a45168e9585e5dc 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -30,6 +30,8 @@ private slots:
 
     void on_next_clicked();
 
+    void on_defaultPrefixEdit_textEdited();
+
 private:
     Ui::StickersRenomator2000 *ui;
     QStringList imageList;
@@ -37,6 +39,7 @@ private:
     QString currentImagePath;
     QPixmap currentImage;
     bool isFirstResize=true;
+    QString defaultPrefix;
     void resizeEvent(QResizeEvent *event) override;
     void keyPressEvent(QKeyEvent *event) override;
     void mousePressEvent ( QMouseEvent * event ) override;
diff --git a/mainwindow.ui b/mainwindow.ui
index 88404a8a561e57a866c5dc4d3462c28d70702714..5e3b75eabe69e2338243598aa78013504f74383c 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -522,16 +522,6 @@
        <item row="2" column="0">
         <widget class="QLineEdit" name="lineEdit"/>
        </item>
-       <item row="2" column="1">
-        <widget class="QToolButton" name="deleteButton">
-         <property name="text">
-          <string comment="Supprimer">X</string>
-         </property>
-         <property name="icon">
-          <iconset theme="dialog-error"/>
-         </property>
-        </widget>
-       </item>
        <item row="4" column="0">
         <widget class="QPushButton" name="pushButton">
          <property name="text">
@@ -563,9 +553,72 @@
          </property>
         </widget>
        </item>
+       <item row="2" column="1">
+        <widget class="QToolButton" name="deleteButton">
+         <property name="text">
+          <string comment="Supprimer">X</string>
+         </property>
+         <property name="icon">
+          <iconset theme="dialog-error"/>
+         </property>
+        </widget>
+       </item>
       </layout>
      </widget>
     </item>
+    <item row="0" column="0">
+     <widget class="QFrame" name="frame_3">
+      <property name="frameShape">
+       <enum>QFrame::StyledPanel</enum>
+      </property>
+      <property name="frameShadow">
+       <enum>QFrame::Raised</enum>
+      </property>
+      <widget class="QLabel" name="label_4">
+       <property name="geometry">
+        <rect>
+         <x>10</x>
+         <y>10</y>
+         <width>61</width>
+         <height>21</height>
+        </rect>
+       </property>
+       <property name="font">
+        <font>
+         <pointsize>11</pointsize>
+         <weight>75</weight>
+         <bold>true</bold>
+        </font>
+       </property>
+       <property name="text">
+        <string>Config</string>
+       </property>
+      </widget>
+      <widget class="QLabel" name="label_5">
+       <property name="geometry">
+        <rect>
+         <x>10</x>
+         <y>50</y>
+         <width>111</width>
+         <height>17</height>
+        </rect>
+       </property>
+       <property name="text">
+        <string>Default prefix:</string>
+       </property>
+      </widget>
+      <widget class="QLineEdit" name="defautPrefixEdit">
+       <property name="geometry">
+        <rect>
+         <x>10</x>
+         <y>70</y>
+         <width>113</width>
+         <height>25</height>
+        </rect>
+       </property>
+      </widget>
+     </widget>
+    </item>
    </layout>
   </widget>
   <widget class="QMenuBar" name="menubar">