diff --git a/src/dialog/vfileinfodialog.cpp b/src/dialog/vfileinfodialog.cpp
index fdae507f..01a17042 100644
--- a/src/dialog/vfileinfodialog.cpp
+++ b/src/dialog/vfileinfodialog.cpp
@@ -39,6 +39,7 @@ void VFileInfoDialog::setupUI()
     if (infoLabel) {
         mainLayout->addWidget(infoLabel);
     }
+
     mainLayout->addLayout(topLayout);
     mainLayout->addWidget(m_btnBox);
     mainLayout->setSizeConstraint(QLayout::SetFixedSize);
diff --git a/src/dialog/vorphanfileinfodialog.cpp b/src/dialog/vorphanfileinfodialog.cpp
new file mode 100644
index 00000000..bb3f0063
--- /dev/null
+++ b/src/dialog/vorphanfileinfodialog.cpp
@@ -0,0 +1,72 @@
+#include "vorphanfileinfodialog.h"
+
+#include <QtWidgets>
+#include "vorphanfile.h"
+#include "vconfigmanager.h"
+#include "utils/vutils.h"
+
+extern VConfigManager vconfig;
+
+VOrphanFileInfoDialog::VOrphanFileInfoDialog(const VOrphanFile *p_file, QWidget *p_parent)
+    : QDialog(p_parent), m_file(p_file)
+{
+    setupUI();
+
+    connect(m_imageFolderEdit, &QLineEdit::textChanged,
+            this, &VOrphanFileInfoDialog::handleInputChanged);
+
+    handleInputChanged();
+}
+
+void VOrphanFileInfoDialog::setupUI()
+{
+    QFormLayout *topLayout = new QFormLayout();
+
+    QLabel *fileLabel = new QLabel(m_file->retrivePath());
+    topLayout->addRow(tr("File:"), fileLabel);
+
+    QLabel *imageFolderLabel = new QLabel(tr("Image folder:"));
+    m_imageFolderEdit = new QLineEdit(m_file->getImageFolder());
+    m_imageFolderEdit->setPlaceholderText(tr("Use global configuration (%1)")
+                                            .arg(vconfig.getImageFolderExt()));
+    QString imgFolderTip = tr("Set the path of the image folder to store images "
+                              "of this file.\nIf absolute path is used, "
+                              "VNote will not manage those images."
+                              "(empty to use global configuration)");
+    imageFolderLabel->setToolTip(imgFolderTip);
+    m_imageFolderEdit->setToolTip(imgFolderTip);
+    topLayout->addRow(imageFolderLabel, m_imageFolderEdit);
+
+    // Ok is the default button.
+    m_btnBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+    connect(m_btnBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
+    connect(m_btnBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
+
+    QPushButton *okBtn = m_btnBox->button(QDialogButtonBox::Ok);
+    m_imageFolderEdit->setMinimumWidth(okBtn->sizeHint().width() * 3);
+
+    QVBoxLayout *mainLayout = new QVBoxLayout();
+    mainLayout->addLayout(topLayout);
+    mainLayout->addWidget(m_btnBox);
+    mainLayout->setSizeConstraint(QLayout::SetFixedSize);
+
+    setLayout(mainLayout);
+    setWindowTitle(tr("External File Information"));
+}
+
+QString VOrphanFileInfoDialog::getImageFolder() const
+{
+    return m_imageFolderEdit->text();
+}
+
+void VOrphanFileInfoDialog::handleInputChanged()
+{
+    bool ok = false;
+    QString imgFolder = m_imageFolderEdit->text();
+    if (imgFolder.isEmpty() || VUtils::checkPathLegal(imgFolder)) {
+        ok = true;
+    }
+
+    QPushButton *okBtn = m_btnBox->button(QDialogButtonBox::Ok);
+    okBtn->setEnabled(ok);
+}
diff --git a/src/dialog/vorphanfileinfodialog.h b/src/dialog/vorphanfileinfodialog.h
new file mode 100644
index 00000000..f0d2a862
--- /dev/null
+++ b/src/dialog/vorphanfileinfodialog.h
@@ -0,0 +1,34 @@
+#ifndef VORPHANFILEINFODIALOG_H
+#define VORPHANFILEINFODIALOG_H
+
+#include <QDialog>
+
+class VOrphanFile;
+class QDialogButtonBox;
+class QLineEdit;
+
+class VOrphanFileInfoDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    VOrphanFileInfoDialog(const VOrphanFile *p_file, QWidget *p_parent = 0);
+
+    // Get the custom image folder for this external file.
+    // Empty string indicates using global config.
+    QString getImageFolder() const;
+
+private slots:
+    // Handle the change of the image folder input.
+    void handleInputChanged();
+
+private:
+    void setupUI();
+
+    const VOrphanFile *m_file;
+
+    QDialogButtonBox *m_btnBox;
+    QLineEdit *m_imageFolderEdit;
+};
+
+#endif // VORPHANFILEINFODIALOG_H
diff --git a/src/dialog/vsettingsdialog.cpp b/src/dialog/vsettingsdialog.cpp
index d5d23c25..dd03eea5 100644
--- a/src/dialog/vsettingsdialog.cpp
+++ b/src/dialog/vsettingsdialog.cpp
@@ -270,6 +270,7 @@ VNoteManagementTab::VNoteManagementTab(QWidget *p_parent)
 
     m_imageFolderEdit = new QLineEdit(this);
     m_imageFolderEdit->setPlaceholderText(tr("Name of the image folder"));
+    m_imageFolderEdit->setToolTip(m_customImageFolder->toolTip());
     QValidator *validator = new QRegExpValidator(QRegExp(VUtils::c_fileNameRegExp), this);
     m_imageFolderEdit->setValidator(validator);
 
@@ -284,15 +285,16 @@ VNoteManagementTab::VNoteManagementTab(QWidget *p_parent)
     // External File.
     // Image folder.
     m_customImageFolderExt = new QCheckBox(tr("Custom image folder"), this);
-    m_customImageFolderExt->setToolTip(tr("Set the global name of the image folder to store images "
+    m_customImageFolderExt->setToolTip(tr("Set the path of the global image folder to store images "
                                           "of external files (restart VNote to make it work).\nYou "
-                                          "could use both absolute or relative path here. If you "
-                                          "use an absolute path, VNote will not manage\nthose images, "
+                                          "could use both absolute or relative path here. If "
+                                          "absolute path is used, VNote will not manage\nthose images, "
                                           "so you need to clean up unused images manually."));
     connect(m_customImageFolderExt, &QCheckBox::stateChanged,
             this, &VNoteManagementTab::customImageFolderExtChanged);
 
     m_imageFolderEditExt = new QLineEdit(this);
+    m_imageFolderEditExt->setToolTip(m_customImageFolderExt->toolTip());
     m_imageFolderEditExt->setPlaceholderText(tr("Name of the image folder"));
 
     QHBoxLayout *imageFolderExtLayout = new QHBoxLayout();
diff --git a/src/resources/vnote.qss b/src/resources/vnote.qss
index 98f0c942..ac696ef6 100644
--- a/src/resources/vnote.qss
+++ b/src/resources/vnote.qss
@@ -281,3 +281,9 @@ QTabBar::close-button:focus {
     image: url(:/resources/icons/close.svg);
     background-color: @focus-color;
 }
+
+QLineEdit[VimCommandLine="true"] {
+    padding: 0px;
+    margin: 0px;
+    border: none;
+}
diff --git a/src/src.pro b/src/src.pro
index 3ac35340..2dd1a518 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -70,7 +70,8 @@ SOURCES += main.cpp\
     vvimindicator.cpp \
     vbuttonwithwidget.cpp \
     vtabindicator.cpp \
-    dialog/vupdater.cpp
+    dialog/vupdater.cpp \
+    dialog/vorphanfileinfodialog.cpp
 
 HEADERS  += vmainwindow.h \
     vdirectorytree.h \
@@ -128,7 +129,8 @@ HEADERS  += vmainwindow.h \
     vbuttonwithwidget.h \
     vedittabinfo.h \
     vtabindicator.h \
-    dialog/vupdater.h
+    dialog/vupdater.h \
+    dialog/vorphanfileinfodialog.h
 
 RESOURCES += \
     vnote.qrc \
diff --git a/src/veditwindow.cpp b/src/veditwindow.cpp
index 69c32b8f..03333c5b 100644
--- a/src/veditwindow.cpp
+++ b/src/veditwindow.cpp
@@ -5,14 +5,16 @@
 #include "vnote.h"
 #include "vconfigmanager.h"
 #include "utils/vutils.h"
-#include "vfile.h"
+#include "vorphanfile.h"
 #include "vmainwindow.h"
 #include "veditarea.h"
 #include "vopenedlistmenu.h"
 #include "vmdtab.h"
 #include "vhtmltab.h"
+#include "vfilelist.h"
 
 extern VConfigManager vconfig;
+extern VNote *g_vnote;
 
 VEditWindow::VEditWindow(VNote *vnote, VEditArea *editArea, QWidget *parent)
     : QTabWidget(parent), vnote(vnote), m_editArea(editArea),
@@ -62,7 +64,8 @@ void VEditWindow::initTabActions()
     connect(m_moveRightAct, &QAction::triggered,
             this, &VEditWindow::handleMoveRightAct);
 
-    m_closeTabAct = new QAction(tr("Close Tab"), this);
+    m_closeTabAct = new QAction(QIcon(":/resources/icons/close.svg"),
+                                tr("Close Tab"), this);
     m_closeTabAct->setToolTip(tr("Close current note tab"));
     connect(m_closeTabAct, &QAction::triggered,
             this, [this](){
@@ -110,6 +113,24 @@ void VEditWindow::initTabActions()
                     }
                 }
             });
+
+    m_noteInfoAct = new QAction(QIcon(":/resources/icons/note_info.svg"),
+                                tr("Note Info"), this);
+    m_noteInfoAct->setToolTip(tr("View and edit information of the note"));
+    connect(m_noteInfoAct, &QAction::triggered,
+            this, [this](){
+                int tab = this->m_closeTabAct->data().toInt();
+                Q_ASSERT(tab != -1);
+
+                VEditTab *editor = getTab(tab);
+                QPointer<VFile> file = editor->getFile();
+                Q_ASSERT(file);
+                if (file->getType() == FileType::Normal) {
+                    g_vnote->getMainWindow()->getFileList()->fileInfo(file);
+                } else if (file->getType() == FileType::Orphan) {
+                    g_vnote->getMainWindow()->editOrphanFileInfo(file);
+                }
+            });
 }
 
 void VEditWindow::setupCornerWidget()
@@ -500,14 +521,21 @@ void VEditWindow::tabbarContextMenuRequested(QPoint p_pos)
         return;
     }
 
-    m_locateAct->setData(tab);
     VEditTab *editor = getTab(tab);
-    QPointer<VFile> file = editor->getFile();
+    VFile *file = editor->getFile();
     if (file->getType() == FileType::Normal) {
         // Locate to folder.
+        m_locateAct->setData(tab);
         menu.addAction(m_locateAct);
+        m_noteInfoAct->setData(tab);
+        menu.addAction(m_noteInfoAct);
+    } else if (file->getType() == FileType::Orphan
+               && !dynamic_cast<VOrphanFile *>(file)->isSystemFile()) {
+        m_noteInfoAct->setData(tab);
+        menu.addAction(m_noteInfoAct);
     }
 
+
     int totalWin = m_editArea->windowCount();
     // When there is only one tab and one split window, there is no need to
     // display these two actions.
diff --git a/src/veditwindow.h b/src/veditwindow.h
index a8faa961..25506385 100644
--- a/src/veditwindow.h
+++ b/src/veditwindow.h
@@ -165,6 +165,9 @@ private:
 
     // Close tabs to the right in tab menu.
     QAction *m_closeRightAct;
+
+    // View and edit info about this note.
+    QAction *m_noteInfoAct;
 };
 
 inline QString VEditWindow::generateTooltip(const VFile *p_file) const
diff --git a/src/vmainwindow.cpp b/src/vmainwindow.cpp
index cf09d1ed..2f118a38 100644
--- a/src/vmainwindow.cpp
+++ b/src/vmainwindow.cpp
@@ -24,6 +24,7 @@
 #include "vtabindicator.h"
 #include "dialog/vupdater.h"
 #include "vorphanfile.h"
+#include "dialog/vorphanfileinfodialog.h"
 
 extern VConfigManager vconfig;
 
@@ -1720,7 +1721,7 @@ void VMainWindow::shortcutHelp()
         docName = VNote::c_shortcutsDocFile_zh;
     }
 
-    VFile *file = vnote->getOrphanFile(docName, false);
+    VFile *file = vnote->getOrphanFile(docName, false, true);
     (dynamic_cast<VOrphanFile *>(file))->setNotebookName(tr("[Help]"));
     editArea->openFile(file, OpenFileMode::Read);
 }
@@ -1815,3 +1816,15 @@ void VMainWindow::openExternalFiles(const QStringList &p_files)
         editArea->openFile(file, OpenFileMode::Read);
     }
 }
+
+void VMainWindow::editOrphanFileInfo(VFile *p_file)
+{
+    VOrphanFile *file = dynamic_cast<VOrphanFile *>(p_file);
+    Q_ASSERT(file);
+
+    VOrphanFileInfoDialog dialog(file, this);
+    if (dialog.exec() == QDialog::Accepted) {
+        QString imgFolder = dialog.getImageFolder();
+        file->setImageFolder(imgFolder);
+    }
+}
diff --git a/src/vmainwindow.h b/src/vmainwindow.h
index 2e6f48c4..88167a90 100644
--- a/src/vmainwindow.h
+++ b/src/vmainwindow.h
@@ -44,6 +44,11 @@ public:
     void locateFile(VFile *p_file);
     void locateCurrentFile();
 
+    VFileList *getFileList() const;
+
+    // View and edit the information of @p_file, which is an orphan file.
+    void editOrphanFileInfo(VFile *p_file);
+
 private slots:
     void importNoteFromFile();
     void viewSettings();
@@ -213,4 +218,9 @@ private:
     QVector<QPixmap> predefinedColorPixmaps;
 };
 
+inline VFileList *VMainWindow::getFileList() const
+{
+    return fileList;
+}
+
 #endif // VMAINWINDOW_H
diff --git a/src/vmdeditoperations.cpp b/src/vmdeditoperations.cpp
index 9606333a..da9cd732 100644
--- a/src/vmdeditoperations.cpp
+++ b/src/vmdeditoperations.cpp
@@ -672,31 +672,34 @@ void VMdEditOperations::decorateText(TextDecoration p_decoration)
         return;
     }
 
+    bool validDecoration = true;
     switch (p_decoration) {
     case TextDecoration::Bold:
-        m_vim->setMode(VimMode::Insert, false);
         decorateBold();
         break;
 
     case TextDecoration::Italic:
-        m_vim->setMode(VimMode::Insert, false);
         decorateItalic();
         break;
 
     case TextDecoration::Strikethrough:
-        m_vim->setMode(VimMode::Insert, false);
         decorateStrikethrough();
         break;
 
     case TextDecoration::InlineCode:
-        m_vim->setMode(VimMode::Insert, false);
         decorateInlineCode();
         break;
 
     default:
+        validDecoration = false;
         qDebug() << "decoration" << (int)p_decoration << "is not implemented yet";
         break;
     }
+
+    if (validDecoration && m_editConfig->m_enableVimMode) {
+        Q_ASSERT(m_vim);
+        m_vim->setMode(VimMode::Insert, false);
+    }
 }
 
 void VMdEditOperations::decorateBold()
diff --git a/src/vnote.cpp b/src/vnote.cpp
index 3ce7a915..af5c13e0 100644
--- a/src/vnote.cpp
+++ b/src/vnote.cpp
@@ -276,7 +276,7 @@ const QString &VNote::getMonospacedFont() const
     return font;
 }
 
-VFile *VNote::getOrphanFile(const QString &p_path, bool p_modifiable)
+VFile *VNote::getOrphanFile(const QString &p_path, bool p_modifiable, bool p_systemFile)
 {
     if (p_path.isEmpty()) {
         return NULL;
@@ -285,8 +285,10 @@ VFile *VNote::getOrphanFile(const QString &p_path, bool p_modifiable)
     // See if the file has already been opened before.
     for (auto const &file : m_externalFiles) {
         Q_ASSERT(file->getType() == FileType::Orphan);
-        if (file->retrivePath() == p_path
-            && file->isModifiable() == p_modifiable) {
+        VOrphanFile *oFile = dynamic_cast<VOrphanFile *>(file);
+        if (oFile->retrivePath() == p_path) {
+            Q_ASSERT(oFile->isModifiable() == p_modifiable);
+            Q_ASSERT(oFile->isSystemFile() == p_systemFile);
             return file;
         }
     }
@@ -302,7 +304,7 @@ VFile *VNote::getOrphanFile(const QString &p_path, bool p_modifiable)
     }
 
     // Create a VOrphanFile for p_path.
-    VOrphanFile *file = new VOrphanFile(p_path, this, p_modifiable);
+    VOrphanFile *file = new VOrphanFile(p_path, this, p_modifiable, p_systemFile);
     m_externalFiles.append(file);
     return file;
 }
diff --git a/src/vnote.h b/src/vnote.h
index 013f270f..158a06d6 100644
--- a/src/vnote.h
+++ b/src/vnote.h
@@ -67,15 +67,16 @@ public:
     static const QString c_shortcutsDocFile_en;
     static const QString c_shortcutsDocFile_zh;
 
-    inline const QVector<QPair<QString, QString> > &getPalette() const;
+    const QVector<QPair<QString, QString> > &getPalette() const;
     void initPalette(QPalette palette);
     QString getColorFromPalette(const QString &p_name) const;
-    inline VMainWindow *getMainWindow() const;
+    VMainWindow *getMainWindow() const;
 
     QString getNavigationLabelStyle(const QString &p_str) const;
 
     // Given the path of an external file, create a VFile struct.
-    VFile *getOrphanFile(const QString &p_path, bool p_modifiable);
+    VFile *getOrphanFile(const QString &p_path, bool p_modifiable,
+                         bool p_systemFile = false);
 
 public slots:
     void updateTemplate();
diff --git a/src/vorphanfile.cpp b/src/vorphanfile.cpp
index accbd469..f5a325c5 100644
--- a/src/vorphanfile.cpp
+++ b/src/vorphanfile.cpp
@@ -8,9 +8,10 @@
 
 extern VConfigManager vconfig;
 
-VOrphanFile::VOrphanFile(const QString &p_path, QObject *p_parent, bool p_modifiable)
+VOrphanFile::VOrphanFile(const QString &p_path, QObject *p_parent,
+                         bool p_modifiable, bool p_systemFile)
     : VFile(VUtils::fileNameFromPath(p_path), p_parent, FileType::Orphan, p_modifiable),
-      m_path(p_path), m_notebookName("[EXTERNAL]")
+      m_path(p_path), m_notebookName("[EXTERNAL]"), m_systemFile(p_systemFile)
 {
     qDebug() << "VOrphanFile" << p_path << m_name << p_modifiable;
 }
@@ -130,6 +131,8 @@ bool VOrphanFile::rename(const QString &p_name)
 
 void VOrphanFile::setImageFolder(const QString &p_path)
 {
+    qDebug() << "orphan file" << retrivePath() << "image folder"
+             << m_imageFolder << "->" << p_path;
     m_imageFolder = p_path;
 }
 
diff --git a/src/vorphanfile.h b/src/vorphanfile.h
index f5c832f9..9c70804c 100644
--- a/src/vorphanfile.h
+++ b/src/vorphanfile.h
@@ -8,7 +8,8 @@ class VOrphanFile : public VFile
 {
     Q_OBJECT
 public:
-    VOrphanFile(const QString &p_path, QObject *p_parent, bool p_modifiable);
+    VOrphanFile(const QString &p_path, QObject *p_parent,
+                bool p_modifiable, bool p_systemFile = false);
 
     bool open() Q_DECL_OVERRIDE;
     QString retrivePath() const Q_DECL_OVERRIDE;
@@ -27,12 +28,16 @@ public:
 
     void setImageFolder(const QString &p_path);
 
+    const QString getImageFolder() const;
+
     // Whether the image folder is a relative path.
     bool isRelativeImageFolder() const Q_DECL_OVERRIDE;
 
     // Return the image folder part in an image link.
     QString getImageFolderInLink() const Q_DECL_OVERRIDE;
 
+    bool isSystemFile() const;
+
 private:
     bool save() Q_DECL_OVERRIDE;
     void convert(DocType p_curType, DocType p_targetType) Q_DECL_OVERRIDE;
@@ -50,7 +55,20 @@ private:
     // Empty to use the global default config.
     QString m_imageFolder;
 
+    // Whether it is a system internal file.
+    bool m_systemFile;
+
     friend class VDirectory;
 };
 
+inline bool VOrphanFile::isSystemFile() const
+{
+    return m_systemFile;
+}
+
+inline const QString VOrphanFile::getImageFolder() const
+{
+    return m_imageFolder;
+}
+
 #endif // VORPHANFILE_H
diff --git a/src/vtabindicator.cpp b/src/vtabindicator.cpp
index a724b21b..fda1d642 100644
--- a/src/vtabindicator.cpp
+++ b/src/vtabindicator.cpp
@@ -4,6 +4,7 @@
 #include <QHBoxLayout>
 
 #include "vedittab.h"
+#include "vorphanfile.h"
 
 VTabIndicator::VTabIndicator(QWidget *p_parent)
     : QWidget(p_parent)
@@ -25,11 +26,16 @@ void VTabIndicator::setupUI()
     m_externalLabel->setToolTip(tr("This file is not managed by any notebook or folder"));
     m_externalLabel->setProperty("ColorTealLabel", true);
 
+    m_systemLabel = new QLabel(tr("System"), this);
+    m_systemLabel->setToolTip(tr("This file is a system file"));
+    m_systemLabel->setProperty("ColorGreenLabel", true);
+
     m_cursorLabel = new QLabel(this);
 
     QHBoxLayout *mainLayout = new QHBoxLayout(this);
     mainLayout->addWidget(m_cursorLabel);
     mainLayout->addWidget(m_externalLabel);
+    mainLayout->addWidget(m_systemLabel);
     mainLayout->addWidget(m_readonlyLabel);
     mainLayout->addWidget(m_docTypeLabel);
     mainLayout->setContentsMargins(0, 0, 0, 0);
@@ -73,6 +79,7 @@ void VTabIndicator::update(const VEditTabInfo &p_info)
     DocType docType = DocType::Html;
     bool readonly = false;
     bool external = false;
+    bool system = false;
     QString cursorStr;
 
     if (p_info.m_editTab)
@@ -82,6 +89,7 @@ void VTabIndicator::update(const VEditTabInfo &p_info)
         docType = file->getDocType();
         readonly = !file->isModifiable();
         external = file->getType() == FileType::Orphan;
+        system = external && dynamic_cast<const VOrphanFile *>(file)->isSystemFile();
 
         if (editTab->isEditMode()) {
             int line = p_info.m_cursorBlockNumber + 1;
@@ -107,4 +115,5 @@ void VTabIndicator::update(const VEditTabInfo &p_info)
     m_docTypeLabel->setText(docTypeToString(docType));
     m_readonlyLabel->setVisible(readonly);
     m_externalLabel->setVisible(external);
+    m_systemLabel->setVisible(system);
 }
diff --git a/src/vtabindicator.h b/src/vtabindicator.h
index b5fb8e26..b029eaa8 100644
--- a/src/vtabindicator.h
+++ b/src/vtabindicator.h
@@ -28,6 +28,9 @@ private:
     // Indicate whether it is a normal note or an external file.
     QLabel *m_externalLabel;
 
+    // Indicate whether it is a system file.
+    QLabel *m_systemLabel;
+
     // Indicate the position of current cursor.
     QLabel *m_cursorLabel;
 };
diff --git a/src/vvimindicator.cpp b/src/vvimindicator.cpp
index bbc9cd6f..2289993c 100644
--- a/src/vvimindicator.cpp
+++ b/src/vvimindicator.cpp
@@ -23,6 +23,7 @@ VVimIndicator::VVimIndicator(QWidget *p_parent)
 void VVimIndicator::setupUI()
 {
     m_cmdLineEdit = new VVimCmdLineEdit(this);
+    m_cmdLineEdit->setProperty("VimCommandLine", true);
     connect(m_cmdLineEdit, &VVimCmdLineEdit::commandCancelled,
             this, [this](){
                 if (m_vim) {