diff --git a/src/batchprocessing.cpp b/src/batchprocessing.cpp
index 124fceb..474503c 100644
--- a/src/batchprocessing.cpp
+++ b/src/batchprocessing.cpp
@@ -13,6 +13,7 @@
 #include <QChart>
 #include <QChartView>
 #include <QLineSeries>
+#include <QCompleter>
 #include "scriptengine.h"
 #include "chartgraph.h"
 
@@ -110,6 +111,35 @@ BatchProcessing::BatchProcessing(Database *database, QWidget *parent) : QDialog(
 
     _textColor = _ui->log->palette().text().color();
 
+    _engine = new Script::ScriptEngine(_database, this);
+    connect(_engine, &Script::ScriptEngine::newMessage, this, &BatchProcessing::newMessage);
+    QStringList apiList;
+    apiList << "core.log" << "core.mark" << "core.unmark" << "core.isMarked" << "core.getObjects" << "core.setMaxthread";
+    apiList << "core.sync" << "core.getString" << "core.getInt" << "core.getFloat" << "core.question" << "core.plot";
+    apiList << "fileName" << "absoluteFileName";
+    _completerModel = new QStringListModel(this);
+    _completerModel->setStringList(apiList);
+    _completer = new QCompleter(_completerModel, this);
+    _ui->consoleLineEdit->setCompleter(_completer);
+    connect(_ui->executeButton, &QPushButton::clicked, _ui->consoleLineEdit, &QLineEdit::returnPressed);
+    connect(_ui->consoleLineEdit, &QLineEdit::returnPressed, [this](){
+        if(!_completer->popup()->isVisible())
+        {
+            QString program = _ui->consoleLineEdit->text();
+            QJSValue val = _engine->eval(program);
+            _ui->consoleLineEdit->addLine();
+            qDebug() << val.toString();
+        }
+    });
+
+    connect(_ui->consoleLineEdit, &QLineEdit::textEdited, [this](const QString &text){
+        QStringList comp = _engine->complete(text);
+        qDebug() << comp;
+        _completerModel->setStringList(comp);
+    });
+
+    _ui->addFilesButton->setAutoDefault(false);
+
     QSettings settings;
     _ui->outputPath->setText(settings.value("batchprocessing/outputpath", QStandardPaths::standardLocations(QStandardPaths::PicturesLocation).first()).toString());
 }
@@ -143,6 +173,15 @@ void BatchProcessing::closeEvent(QCloseEvent *event)
     }
 }
 
+void BatchProcessing::refreshPaths()
+{
+    QStringList paths;
+    for(int i=0; i<_ui->pathsList->count(); i++)
+        paths.append(_ui->pathsList->item(i)->text());
+    _paths = scanDirectories(paths);
+    _engine->setParams("", _paths, _ui->outputPath->text());
+}
+
 void BatchProcessing::addFiles()
 {
     QSettings settings;
@@ -152,6 +191,7 @@ void BatchProcessing::addFiles()
         _ui->pathsList->addItems(files);
         settings.setValue("batchprocessing/inputpath", QFileInfo(files.first()).absolutePath());
     }
+    refreshPaths();
 }
 
 void BatchProcessing::addDir()
@@ -163,6 +203,7 @@ void BatchProcessing::addDir()
         _ui->pathsList->addItem(dir);
         settings.setValue("batchprocessing/inputpath", dir);
     }
+    refreshPaths();
 }
 
 void BatchProcessing::addMarked()
@@ -174,17 +215,20 @@ void BatchProcessing::addMarked()
         if(info.exists() && info.isReadable())
             _ui->pathsList->addItem(file);
     };
+    refreshPaths();
 }
 
 void BatchProcessing::removePath()
 {
     for(auto &item : _ui->pathsList->selectedItems())
         delete item;
+    refreshPaths();
 }
 
 void BatchProcessing::removeAllPaths()
 {
     _ui->pathsList->clear();
+    refreshPaths();
 }
 
 void BatchProcessing::browse()
@@ -208,9 +252,6 @@ void BatchProcessing::runScript()
         _engineThread = new Script::ScriptEngineThread(_database, this);
         connect(_engineThread, &Script::ScriptEngineThread::newMessage, this, &BatchProcessing::newMessage);
         connect(_engineThread, &Script::ScriptEngineThread::finished, this, &BatchProcessing::scriptFinished);
-        QStringList paths;
-        for(int i=0; i<_ui->pathsList->count(); i++)
-             paths.append(_ui->pathsList->item(i)->text());
 
         QFileInfo outDir(_ui->outputPath->text());
         if(outDir.exists() && outDir.isWritable())
@@ -221,7 +262,7 @@ void BatchProcessing::runScript()
             else
                 script = ":/scripts/" + script;
 
-            _engineThread->setParams(script, scanDirectories(paths), _ui->outputPath->text());
+            _engineThread->setParams(script, _paths, _ui->outputPath->text());
             _engineThread->start();
             _ui->startButton->setEnabled(false);
             _ui->stopButton->setEnabled(true);
@@ -329,6 +370,48 @@ void BatchProcessing::plot(const QVariant &graph)
     chart->plot(graph);
 }
 
+ConsoleLine::ConsoleLine(QWidget *parent) : QLineEdit(parent)
+{
+}
+
+void ConsoleLine::addLine()
+{
+    QString line = text();
+    clear();
+    if(_history.size() && _history.last() == line)return;
+
+    _history.append(line);
+    if(_history.size() > 100)_history.removeFirst();
+    _currentLine = _history.size();
+}
+
+void ConsoleLine::keyReleaseEvent(QKeyEvent *event)
+{
+    if(event->key() == Qt::Key_Up)
+    {
+        _currentLine--;
+        if(_currentLine < 0)
+        {
+            _currentLine = -1;
+            clear();
+            return;
+        }
+        setText(_history.at(_currentLine));
+    }
+    else if(event->key() == Qt::Key_Down)
+    {
+        _currentLine++;
+        if(_currentLine >= _history.size())
+        {
+            _currentLine = _history.size();
+            clear();
+            return;
+        }
+        setText(_history.at(_currentLine));
+    }
+    else QLineEdit::keyReleaseEvent(event);
+}
+
 void openDir(const QString &path)
 {
 #ifdef Q_OS_LINUX
diff --git a/src/batchprocessing.h b/src/batchprocessing.h
index e8b6fc4..0896505 100644
--- a/src/batchprocessing.h
+++ b/src/batchprocessing.h
@@ -3,6 +3,9 @@
 
 #include <QDialog>
 #include <QFileSystemWatcher>
+#include <QStringListModel>
+#include <QCompleter>
+#include <QLineEdit>
 #include "scriptengine.h"
 
 namespace Ui { class BatchProcessing; }
@@ -16,8 +19,12 @@ class BatchProcessing : public QDialog
     QString _scriptBasePath;
     QFileSystemWatcher _fileWatcher;
     Script::ScriptEngineThread *_engineThread = nullptr;
+    Script::ScriptEngine *_engine = nullptr;
     QColor _textColor;
     Database *_database;
+    QStringListModel *_completerModel = nullptr;
+    QCompleter *_completer = nullptr;
+    QList<QPair<QString, QString>> _paths;
 private slots:
     void scanScriptDir();
 public:
@@ -25,6 +32,7 @@ public:
     ~BatchProcessing();
 protected:
     void closeEvent(QCloseEvent *event);
+    void refreshPaths();
 public slots:
     void addFiles();
     void addDir();
@@ -47,6 +55,18 @@ public slots:
     void plot(const QVariant &graph);
 };
 
+class ConsoleLine : public QLineEdit
+{
+    Q_OBJECT
+public:
+    explicit ConsoleLine(QWidget *parent = nullptr);
+    void addLine();
+    void keyReleaseEvent(QKeyEvent *event) override;
+private:
+    int _currentLine = 0;
+    QStringList _history;
+};
+
 void openDir(const QString &path);
 
 #endif // BATCHPROCESSING_H
diff --git a/src/batchprocessing.ui b/src/batchprocessing.ui
index 6070fa1..9c10245 100644
--- a/src/batchprocessing.ui
+++ b/src/batchprocessing.ui
@@ -43,6 +43,9 @@
          <property name="text">
           <string>Add files</string>
          </property>
+         <property name="autoDefault">
+          <bool>false</bool>
+         </property>
         </widget>
        </item>
        <item>
@@ -50,6 +53,9 @@
          <property name="text">
           <string>Add directories</string>
          </property>
+         <property name="autoDefault">
+          <bool>false</bool>
+         </property>
         </widget>
        </item>
        <item>
@@ -57,6 +63,9 @@
          <property name="text">
           <string>Add marked</string>
          </property>
+         <property name="autoDefault">
+          <bool>false</bool>
+         </property>
         </widget>
        </item>
        <item>
@@ -64,6 +73,9 @@
          <property name="text">
           <string>Remove</string>
          </property>
+         <property name="autoDefault">
+          <bool>false</bool>
+         </property>
         </widget>
        </item>
        <item>
@@ -71,6 +83,9 @@
          <property name="text">
           <string>Remove all</string>
          </property>
+         <property name="autoDefault">
+          <bool>false</bool>
+         </property>
         </widget>
        </item>
       </layout>
@@ -98,6 +113,9 @@
        <property name="text">
         <string>Browse</string>
        </property>
+       <property name="autoDefault">
+        <bool>false</bool>
+       </property>
       </widget>
      </item>
     </layout>
@@ -129,6 +147,9 @@
        <property name="text">
         <string>Open scripts</string>
        </property>
+       <property name="autoDefault">
+        <bool>false</bool>
+       </property>
       </widget>
      </item>
     </layout>
@@ -171,23 +192,30 @@
    <item>
     <layout class="QHBoxLayout" name="horizontalLayout_4">
      <item>
-      <spacer name="horizontalSpacer_2">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
+      <widget class="ConsoleLine" name="consoleLineEdit">
+       <property name="placeholderText">
+        <string>Console</string>
        </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>40</width>
-         <height>20</height>
-        </size>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="executeButton">
+       <property name="text">
+        <string>Execute</string>
        </property>
-      </spacer>
+       <property name="autoDefault">
+        <bool>false</bool>
+       </property>
+      </widget>
      </item>
      <item>
       <widget class="QPushButton" name="startButton">
        <property name="text">
         <string>Start script</string>
        </property>
+       <property name="autoDefault">
+        <bool>false</bool>
+       </property>
       </widget>
      </item>
      <item>
@@ -198,12 +226,8 @@
        <property name="text">
         <string>Stop script</string>
        </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QPushButton" name="closeButton">
-       <property name="text">
-        <string>Close</string>
+       <property name="autoDefault">
+        <bool>false</bool>
        </property>
       </widget>
      </item>
@@ -211,23 +235,29 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ConsoleLine</class>
+   <extends>QLineEdit</extends>
+   <header>batchprocessing.h</header>
+  </customwidget>
+ </customwidgets>
+ <tabstops>
+  <tabstop>pathsList</tabstop>
+  <tabstop>addFilesButton</tabstop>
+  <tabstop>addDirButton</tabstop>
+  <tabstop>addMarkedButton</tabstop>
+  <tabstop>removeButton</tabstop>
+  <tabstop>removeAllButton</tabstop>
+  <tabstop>browseButton</tabstop>
+  <tabstop>openScriptsButton</tabstop>
+  <tabstop>scriptsList</tabstop>
+  <tabstop>consoleLineEdit</tabstop>
+  <tabstop>startButton</tabstop>
+  <tabstop>stopButton</tabstop>
+  <tabstop>outputPath</tabstop>
+  <tabstop>log</tabstop>
+ </tabstops>
  <resources/>
- <connections>
-  <connection>
-   <sender>closeButton</sender>
-   <signal>released()</signal>
-   <receiver>BatchProcessing</receiver>
-   <slot>close()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>973</x>
-     <y>745</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>511</x>
-     <y>383</y>
-    </hint>
-   </hints>
-  </connection>
- </connections>
+ <connections/>
 </ui>
diff --git a/src/scriptengine.cpp b/src/scriptengine.cpp
index 8a2d88e..7be8ffd 100644
--- a/src/scriptengine.cpp
+++ b/src/scriptengine.cpp
@@ -4,6 +4,7 @@
 #include <QDebug>
 #include <QInputDialog>
 #include <QJsonValue>
+#include <QJSValueIterator>
 #include "loadrunable.h"
 #include "rawimage.h"
 #include "loadimage.h"
@@ -40,7 +41,7 @@ ScriptEngine::ScriptEngine(Database *database, BatchProcessing *parent)
 void ScriptEngine::setParams(const QString &scriptPath, const QList<QPair<QString, QString>> &paths, const QString &outputDir)
 {
     _scriptPath = scriptPath;
-    _paths = paths;
+    setPaths(paths);
     _outputDir = outputDir + "/";
 }
 
@@ -417,14 +418,73 @@ QJSValue ScriptEngine::newArray(uint size)
     return _jsEngine->newArray(size);
 }
 
-void ScriptEngine::run()
+QJSValue ScriptEngine::eval(const QString &program)
 {
-    QJSValue jsPaths = _jsEngine->newArray(_paths.size());
-    for(qsizetype i=0; i<_paths.size(); i++)
-        jsPaths.setProperty(i, _jsEngine->newQObject(new File(_paths[i].first, _paths[i].second, this)));
+    QStringList stackTrace;
+    QJSValue result = _jsEngine->evaluate(program, QString(), 1, &stackTrace);
+
+    if(result.isError())
+    {
+        QString error = result.property("name").toString() + " on line " + result.property("lineNumber").toString() + " : " + result.toString();
+        error += "\n" + result.property("stack").toString();
+        emit newMessage(error, true);
+    }
+    else if(!result.isUndefined())
+    {
+        emit newMessage(result.toString(), false);
+    }
+
+    return result;
+}
+
+QStringList ScriptEngine::complete(const QString &line)
+{
+    QStringList complete;
+
+    QJSValue globObj = _jsEngine->globalObject();
+
+    QRegularExpression reg("[a-zA-Z_][a-zA-Z0-9_]*");
+    auto match = reg.match(line);
+    if(match.hasMatch())
+    {
+        QString var = match.captured();
+        if(globObj.hasProperty(var))
+        {
+            complete.clear();
+            QJSValueIterator it(globObj.property(var));
+            while(it.hasNext())
+            {
+                it.next();
+                if((it.value().isCallable() || it.value().isObject()) && it.name() != "contructor" && it.name() != "objectNameChanged")
+                    complete.append(var + "." + it.name());
+            }
+        }
+    }
+    else
+    {
+        QJSValueIterator it(globObj);
+        while(it.hasNext())
+        {
+            it.next();
+            complete.append(it.name());
+        }
+    }
+
+    return complete;
+}
+
+void ScriptEngine::setPaths(const QList<QPair<QString, QString> > &paths)
+{
+    _paths = paths;
+    QJSValue jsPaths = _jsEngine->newArray(paths.size());
+    for(qsizetype i=0; i<paths.size(); i++)
+        jsPaths.setProperty(i, _jsEngine->newQObject(new File(paths[i].first, paths[i].second, this)));
 
     _jsEngine->globalObject().setProperty("files", jsPaths);
+}
 
+void ScriptEngine::run()
+{
     QFile scriptFile(_scriptPath);
     if(!scriptFile.open(QIODevice::ReadOnly))
     {
diff --git a/src/scriptengine.h b/src/scriptengine.h
index f4667d9..7eb03dd 100644
--- a/src/scriptengine.h
+++ b/src/scriptengine.h
@@ -64,6 +64,9 @@ public:
 #endif // PLATESOLVER
     QJSValue newObject();
     QJSValue newArray(uint size);
+    QJSValue eval(const QString &program);
+    QStringList complete(const QString &line);
+    void setPaths(const QList<QPair<QString, QString>> &paths);
 public slots:
     void run();
 signals: