diff --git a/CMakeLists.txt b/CMakeLists.txt
index 34a4686..6762cdc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,6 +32,8 @@ set(TENMON_SRC
     src/batchprocessing.cpp src/batchprocessing.h src/batchprocessing.ui
     src/chartgraph.h src/chartgraph.cpp
     src/database.cpp src/database.h
+    src/databasetree.cpp src/databasetree.h
+    src/databasetreekeys.ui
     src/databaseview.cpp src/databaseview.h
     src/delete.cpp
     src/filemanager.h src/filemanager.cpp src/filemanager.ui
@@ -92,6 +94,7 @@ if(STELLARSOLVER_INCLUDE AND STELLARSOLVER_LIB)
     if(MXE)
         find_library(GSL_LIB gsl REQUIRED)
         find_library(GSLCBLAS_LIB gslcblas REQUIRED)
+        target_compile_definitions(tenmon PRIVATE "stellarsolver_STATIC")
         target_link_libraries(tenmon PRIVATE ${STELLARSOLVER_LIB} ${GSL_LIB} ${GSLCBLAS_LIB} boost_regex-mt-x64)
     else(MXE)
         target_link_libraries(tenmon PRIVATE ${STELLARSOLVER_LIB})
diff --git a/src/databasetree.cpp b/src/databasetree.cpp
new file mode 100644
index 0000000..30070c3
--- /dev/null
+++ b/src/databasetree.cpp
@@ -0,0 +1,428 @@
+#include "databasetree.h"
+
+#include "database.h"
+#include <QComboBox>
+#include <QDialogButtonBox>
+#include <QPushButton>
+#include <QSettings>
+#include <QSqlError>
+#include <QVBoxLayout>
+
+DatabaseTreeSettings::DatabaseTreeSettings(const QString &filter, const QStringList &keywords, QWidget *parent) : QDialog(parent)
+{
+    setWindowTitle(tr("Add tree filter"));
+    QVBoxLayout *vlayout = new QVBoxLayout(this);
+    setLayout(vlayout);
+
+    QStringList key = filter.split('/');
+
+    for(int i = 0; i < 10; i++)
+    {
+        QComboBox *comboxBox = new QComboBox(this);
+        comboxBox->addItem("");
+        comboxBox->addItems(keywords);
+        vlayout->addWidget(comboxBox);
+        _keywordsSelect.append(comboxBox);
+        if(i < key.size() && keywords.contains(key[i]))
+            comboxBox->setCurrentText(key[i]);
+    }
+
+    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
+    connect(buttonBox, &QDialogButtonBox::accepted, this, &DatabaseTreeSettings::accept);
+    connect(buttonBox, &QDialogButtonBox::rejected, this, &DatabaseTreeSettings::reject);
+    vlayout->addWidget(buttonBox);
+}
+
+QString DatabaseTreeSettings::keywords() const
+{
+    QStringList keywords;
+    for(QComboBox *box : _keywordsSelect)
+    {
+        if(box->currentIndex() > 0)
+            keywords.append(box->currentText());
+    }
+    return keywords.join('/');
+}
+
+class TreeNode
+{
+public:
+    TreeNode() = default;
+    TreeNode(TreeNode *parent, const QVariant value, int level)
+        :_parent(parent)
+        ,_value(value)
+        ,_level(level)
+    {}
+    const TreeNode* child(size_t idx) const
+    {
+        if(idx >= 0 && idx < _children.size())
+            return _children[idx].get();
+        return nullptr;
+    }
+    TreeNode* child(size_t idx)
+    {
+        if(idx >= 0 && idx < _children.size())
+            return _children[idx].get();
+        return nullptr;
+    }
+    TreeNode* parent() const
+    {
+        return _parent;
+    }
+    int row() const
+    {
+        if(_parent)
+            return _parent->indexOf(this);
+        return 0;
+    }
+    int childCount() const
+    {
+        if(!_init)return 1;
+        return _children.size();
+    }
+    const QVariant& value() const
+    {
+        return _value;
+    }
+    void fill(const QVariantList &list)
+    {
+        _init = true;
+        for(auto &item : list)
+            _children.push_back(std::make_unique<TreeNode>(this, item, _level + 1));
+    }
+    bool filled() const
+    {
+        return _init;
+    }
+    int level() const
+    {
+        return _level;
+    }
+private:
+    int indexOf(const TreeNode *child) const
+    {
+        auto f = [child](const std::unique_ptr<TreeNode> &i){ return i.get() == child; };
+        auto it = std::find_if(_children.begin(), _children.end(), f);
+        if(it != _children.end())return std::distance(_children.begin(), it);
+        return -1;
+    }
+    TreeNode *_parent = nullptr;
+    QVariant _value;
+    std::vector<std::unique_ptr<TreeNode>> _children;
+    bool _init = false;
+    int _level = 0;
+};
+
+DatabaseTree::DatabaseTree(Database *database, QObject *parent) : QAbstractItemModel(parent)
+    ,_database(database)
+{
+    _italicFont.setItalic(true);
+}
+
+void DatabaseTree::setKeys(const QStringList &keys)
+{
+    _keys = keys;
+    if(!_loaded)return;
+    beginResetModel();
+    prepareQueries();
+    _rootNode = std::make_unique<TreeNode>();
+    fillNode(_rootNode.get());
+    endResetModel();
+}
+
+QModelIndex DatabaseTree::index(int row, int column, const QModelIndex &parent) const
+{
+    if(!hasIndex(row, column, parent))
+        return QModelIndex();
+
+    TreeNode *node;
+
+    if(!parent.isValid())
+        node = _rootNode.get();
+    else
+        node = static_cast<TreeNode*>(parent.internalPointer());
+
+    if(node)
+    {
+        TreeNode *child = node->child(row);
+        if(child)return createIndex(row, column, child);
+    }
+
+    return QModelIndex();
+}
+
+QModelIndex DatabaseTree::parent(const QModelIndex &index) const
+{
+    if(!index.isValid())
+        return QModelIndex();
+
+    TreeNode *childNode = static_cast<TreeNode*>(index.internalPointer());
+    const TreeNode *parentNode = childNode->parent();
+
+    if (parentNode == _rootNode.get())
+        return QModelIndex();
+
+    return createIndex(parentNode->row(), 0, parentNode);
+}
+
+int DatabaseTree::rowCount(const QModelIndex &index) const
+{
+    if(index.column() > 0)return 0;
+
+    TreeNode *node;
+    if(!index.isValid())
+        node = _rootNode.get();
+    else
+        node = static_cast<TreeNode*>(index.internalPointer());
+
+    if(node && node->level() <= _keys.size())
+        return node->childCount();
+
+    return 0;
+}
+
+int DatabaseTree::columnCount(const QModelIndex &index) const
+{
+    Q_UNUSED(index);
+    return 1;
+}
+
+QVariant DatabaseTree::data(const QModelIndex &index, int role) const
+{
+    if(!index.isValid())
+        return QVariant();
+
+    TreeNode *node = static_cast<TreeNode*>(index.internalPointer());
+    if(node == nullptr)
+        return QVariant();
+
+    switch(role)
+    {
+    case Qt::FontRole:
+    {
+        if(node->value().toString().isNull())
+            return _italicFont;
+        return QVariant();
+    }
+    case Qt::DisplayRole:
+    {
+        QString str = node->value().toString();
+        if(str.isNull())return "NULL";
+        else return str;
+    }
+    default:
+        return QVariant();
+    }
+}
+
+bool DatabaseTree::canFetchMore(const QModelIndex &parent) const
+{
+    if(!parent.isValid())
+        return false;
+
+    TreeNode *node = static_cast<TreeNode*>(parent.internalPointer());
+    //qDebug() << "Can Fetch more" << node->value();
+    if(node)
+        return !node->filled();
+    return false;
+}
+
+void DatabaseTree::fetchMore(const QModelIndex &parent)
+{
+    if(!parent.isValid())
+        return;
+
+    TreeNode *node = static_cast<TreeNode*>(parent.internalPointer());
+    //qDebug() << "Fetch more" << node->value();
+    if(node)
+    {
+        fillNode(node);
+
+        if(node->childCount() > 0)
+        {
+            beginInsertRows(parent, 0, node->childCount() - 1);
+            endInsertRows();
+        }
+    }
+}
+
+QVariant DatabaseTree::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if(orientation == Qt::Horizontal && role == Qt::DisplayRole && section == 0)
+        return _keys.join('/');
+    return QVariant();
+}
+
+void DatabaseTree::load()
+{
+    if(!_loaded)
+    {
+        _loaded = true;
+        setKeys(_keys);
+    }
+}
+
+void DatabaseTree::prepareQueries()
+{
+    if(!_loaded)return;
+
+    _queries.clear();
+
+    QString join;
+    QString where;
+
+    for(int i = 0; i < _keys.size(); i++)
+        join += QString(" LEFT JOIN fits_headers AS h%1 ON f.id = h%1.id_file AND h%1.key = ?").arg(i);
+
+    for(int i = 0; i < _keys.size(); i++)
+    {
+        QString sql = QString("SELECT h%1.value FROM fits_files AS f").arg(i) + join + where + QString(" GROUP BY h%1.value ORDER BY h%1.value").arg(i);
+        qDebug() << _keys[i] << sql;
+        QSqlQuery query(sql, _database->db());
+        for(auto &val : _keys)
+            query.addBindValue(val);
+
+        if(where.isEmpty())
+            where += QString(" WHERE h%1.value IS ?").arg(i);
+        else
+            where += QString(" AND h%1.value IS ?").arg(i);
+        _queries.append(std::move(query));
+    }
+
+    QSqlQuery files("SELECT f.file FROM fits_files AS f " + join + where + " GROUP BY f.id ORDER BY f.file", _database->db());
+    for(auto &val : _keys)
+        files.addBindValue(val);
+    qDebug() << files.lastQuery();
+    _queries.append(std::move(files));
+}
+
+void DatabaseTree::fillNode(TreeNode *node)
+{
+    if(node->filled())
+        return;
+
+    TreeNode *n = node;
+    QVariantList vals;
+    while(n->parent())
+    {
+        vals.prepend(n->value());
+        n = n->parent();
+    }
+
+    int level = vals.size();
+    if(level >= _queries.size())
+    {
+        qWarning() << "Level is too deep";
+        node->fill({});
+        return;
+    }
+    QSqlQuery &q = _queries[level];
+
+    for(int i = 0; i < level; i++)
+        q.bindValue(i + _keys.size(), vals[i]);
+    if(!q.exec())
+    {
+        qWarning() << "Failed to execute query" << q.lastError();
+        node->fill({});
+        return;
+    }
+
+    QVariantList list;
+    while(q.next())
+        list.append(q.value(0));
+
+    node->fill(list);
+}
+
+DatabaseTreeView::DatabaseTreeView(Database *database, QWidget *parent) : QWidget(parent)
+    ,_database(database)
+{
+    QVBoxLayout *vlayout = new QVBoxLayout(this);
+    QHBoxLayout *hlayout = new QHBoxLayout(this);
+
+    _model = new DatabaseTree(database, this);
+    _treeView = new QTreeView(this);
+    _treeView->setModel(_model);
+    _treeView->setHeaderHidden(true);
+
+    QSettings settings;
+    QStringList filters = settings.value("databasetreeview/filters", QStringList{"OBJECT", "OBJECT/IMAGETYP", "OBJECT/IMAGETYP/FILTER", "OBJECT/IMAGETYP/FILTER/EXPTIME"}).toStringList();
+    int selectedFilter = settings.value("databasetreeview/selectedFilter", 2).toInt();
+
+    _filters = new QComboBox(this);
+    _filters->addItems(filters);
+    _filters->setCurrentIndex(selectedFilter);
+    connect(_filters, &QComboBox::currentTextChanged, this, &DatabaseTreeView::filterChanged);
+    filterChanged(_filters->currentText());
+
+    QPushButton *addButton = new QPushButton(tr("Add"), this);
+    QPushButton *removeButton = new QPushButton(tr("Remove"), this);
+
+    hlayout->addWidget(_filters, 1);
+    hlayout->addWidget(addButton);
+    hlayout->addWidget(removeButton);
+
+    vlayout->addLayout(hlayout);
+    vlayout->addWidget(_treeView);
+
+    connect(_treeView, &QTreeView::activated, [this](const QModelIndex &index){
+        if(!_model->hasChildren(index))
+        {
+            QString path = _model->data(index).toString();
+            emit loadFile(path);
+        }
+    });
+
+    connect(addButton, &QPushButton::clicked, this, &DatabaseTreeView::addFilter);
+    connect(removeButton, &QPushButton::clicked, this, &DatabaseTreeView::removeFilter);
+}
+
+DatabaseTreeView::~DatabaseTreeView()
+{
+    QStringList filters;
+    for(int i = 0; i < _filters->count(); i++)
+        filters.append(_filters->itemText(i));
+
+    QSettings settings;
+    settings.setValue("databasetreeview/filters", filters);
+    settings.setValue("databasetreeview/selectedFilter", _filters->currentIndex());
+}
+
+void DatabaseTreeView::addFilter()
+{
+    QStringList keywords = _database->getFitsKeywords();
+    DatabaseTreeSettings settings(_filters->currentText(), keywords, this);
+    int result = settings.exec();
+    if(result == QDialog::Accepted)
+    {
+        QString keywords = settings.keywords();
+        int idx = _filters->findText(keywords);
+        if(idx == -1)
+        {
+            _filters->addItem(keywords);
+            _filters->setCurrentText(keywords);
+        }
+        else
+        {
+            _filters->setCurrentIndex(idx);
+        }
+    }
+}
+
+void DatabaseTreeView::removeFilter()
+{
+    if(_filters->count() > 1)
+        _filters->removeItem(_filters->currentIndex());
+}
+
+void DatabaseTreeView::filterChanged(const QString &filter)
+{
+    QStringList keys = filter.split('/');
+    _model->setKeys(keys);
+}
+
+void DatabaseTreeView::visible(bool visible)
+{
+    if(visible)
+        _model->load();
+}
diff --git a/src/databasetree.h b/src/databasetree.h
new file mode 100644
index 0000000..f515d13
--- /dev/null
+++ b/src/databasetree.h
@@ -0,0 +1,69 @@
+#ifndef DATABASETREE_H
+#define DATABASETREE_H
+
+#include <QAbstractItemModel>
+#include <QTreeView>
+#include <QSqlQuery>
+#include <QFont>
+#include <QDialog>
+#include <QComboBox>
+#include <memory>
+
+class Database;
+class TreeNode;
+
+class DatabaseTreeSettings : public QDialog
+{
+public:
+    explicit DatabaseTreeSettings(const QString &filter, const QStringList &keywords, QWidget *parent = nullptr);
+    QString keywords() const;
+private:
+    QVector<QComboBox*> _keywordsSelect;
+};
+
+class DatabaseTree : public QAbstractItemModel
+{
+public:
+    explicit DatabaseTree(Database *database, QObject *parent = nullptr);
+    void setKeys(const QStringList &keys);
+    QModelIndex index(int row, int column, const QModelIndex &parent) const override;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &index) const override;
+    int columnCount(const QModelIndex &index) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    bool canFetchMore(const QModelIndex &parent) const override;
+    void fetchMore(const QModelIndex &parent) override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+    void load();
+private:
+    void prepareQueries();
+    void fillNode(TreeNode *node);
+    Database *_database = nullptr;
+    std::unique_ptr<TreeNode> _rootNode;
+    QVector<QSqlQuery> _queries;
+    QStringList _keys;
+    QFont _italicFont;
+    bool _loaded = false;
+};
+
+class DatabaseTreeView : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit DatabaseTreeView(Database *database, QWidget *parent = nullptr);
+    virtual ~DatabaseTreeView();
+public slots:
+    void addFilter();
+    void removeFilter();
+    void filterChanged(const QString &filter);
+    void visible(bool visible);
+signals:
+    void loadFile(const QString &file);
+private:
+    QComboBox *_filters = nullptr;
+    QTreeView *_treeView = nullptr;
+    DatabaseTree *_model = nullptr;
+    Database *_database = nullptr;
+};
+
+#endif // DATABASETREE_H
diff --git a/src/databasetreekeys.ui b/src/databasetreekeys.ui
new file mode 100644
index 0000000..9ae73de
--- /dev/null
+++ b/src/databasetreekeys.ui
@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Dialog</class>
+ <widget class="QDialog" name="Dialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>511</width>
+    <height>487</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <widget class="QDialogButtonBox" name="buttonBox">
+   <property name="geometry">
+    <rect>
+     <x>120</x>
+     <y>390</y>
+     <width>341</width>
+     <height>32</height>
+    </rect>
+   </property>
+   <property name="orientation">
+    <enum>Qt::Horizontal</enum>
+   </property>
+   <property name="standardButtons">
+    <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+   </property>
+  </widget>
+  <widget class="QComboBox" name="comboBox">
+   <property name="geometry">
+    <rect>
+     <x>60</x>
+     <y>30</y>
+     <width>86</width>
+     <height>26</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="lineEdit">
+   <property name="geometry">
+    <rect>
+     <x>180</x>
+     <y>30</y>
+     <width>113</width>
+     <height>26</height>
+    </rect>
+   </property>
+  </widget>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>Dialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>Dialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 542c272..3d02459 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -128,6 +128,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     _plateSolving->hide();
 #endif
 
+    _databaseTree = new DatabaseTree(m_database, this);
+
     QToolBar *navigationToolbar = new QToolBar(tr("Navigation toolbar"), this);
     navigationToolbar->setObjectName("navigationtoolbar");
     navigationToolbar->hide();
@@ -173,6 +175,15 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     histogramDock->hide();
     addDockWidget(Qt::LeftDockWidgetArea, histogramDock);
 
+    DatabaseTreeView *databaseTreeView = new DatabaseTreeView(m_database, this);
+    QDockWidget *databaseTreeDock = new QDockWidget(tr("Database Tree"), this);
+    databaseTreeDock->setObjectName("databasetreeDock");
+    databaseTreeDock->setWidget(databaseTreeView);
+    databaseTreeDock->hide();
+    connect(databaseTreeDock, &QDockWidget::visibilityChanged, databaseTreeView, &DatabaseTreeView::visible);
+    connect(databaseTreeView, &DatabaseTreeView::loadFile, this, static_cast<void (MainWindow::*)(const QString &)>(&MainWindow::loadFile));
+    addDockWidget(Qt::BottomDockWidgetArea, databaseTreeDock);
+
     setWindowTitle(tr("Tenmon"));
 
     connect(m_ringList, &ImageRingList::pixmapLoaded, m_image, &ImageScrollArea::imageLoaded);
@@ -337,6 +348,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     dockMenu->addAction(navigationToolbar->toggleViewAction());
     dockMenu->addAction(filesystemDock->toggleViewAction());
     dockMenu->addAction(databaseViewDock->toggleViewAction());
+    dockMenu->addAction(databaseTreeDock->toggleViewAction());
     if(filetreeDock)dockMenu->addAction(filetreeDock->toggleViewAction());
     dockMenu->addAction(histogramDock->toggleViewAction());
 #ifdef PLATESOLVER
diff --git a/src/mainwindow.h b/src/mainwindow.h
index ad9124a..2855171 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -11,6 +11,7 @@
 #include "stretchtoolbar.h"
 #include "databaseview.h"
 #include "platesolving.h"
+#include "databasetree.h"
 
 class MainWindow : public QMainWindow
 {
@@ -24,6 +25,7 @@ class MainWindow : public QMainWindow
     Filetree *m_filetree;
     DataBaseView *m_databaseView;
     PlateSolving *_plateSolving = nullptr;
+    DatabaseTree *_databaseTree = nullptr;
     static int socketPair[2];
     QSocketNotifier *socketNotifier;
     QString _lastDir;
@@ -69,6 +71,7 @@ public slots:
     void exportCSV();
     void checkNewVersion();
     void openFileManager();
+    void runScript(const QString &script, const QString &outdir, const QStringList &paths, bool exit);
 };
 
 #endif // MAINWINDOW_H