diff --git a/src/cantor.kcfg b/src/cantor.kcfg
index f8db6e6d..622a776c 100644
--- a/src/cantor.kcfg
+++ b/src/cantor.kcfg
@@ -1,59 +1,65 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <kcfg xmlns="https://www.kde.org/standards/kcfg/1.0"
       xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="https://www.kde.org/standards/kcfg/1.0
                           https://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >
   <include>cantor_export.h</include>
+  <include>config-cantor.h</include>
+  <include>QUrl</include>
   <kcfgfile/>
   <group name="Cantor">
     <entry name="DefaultBackend" type="String">
       <label>The Backend that is used by default</label>
       <default></default>
     </entry>
     <entry name="TypesetDefault" type="Bool">
       <label>Do Typesetting by default</label>
       <default>true</default>
     </entry>
     <entry name="HighlightDefault" type="Bool">
       <label>Do Syntax Highlighting by default</label>
       <default>true</default>
     </entry>
     <entry name="CompletionDefault" type="Bool">
       <label>Enable Completions by default</label>
       <default>true</default>
     </entry>
     <entry name="ExpressionNumberingDefault" type="Bool">
       <label>Enable Numbering of Expressions by default</label>
       <default>false</default>
     </entry>
     <entry name="AnimationDefault" type="Bool">
       <label>Animate changes in the Worksheet by default</label>
       <default>true</default>
     </entry>
     <entry name="EmbeddedMathDefault" type="Bool">
       <label>Enable rendering math expressions inside $$..$$ in Text and Markdown entries by default (needs pdflatex installed)</label>
       <default>true</default>
     </entry>
     <entry name="AutoEval" type="Bool">
       <label>Automatically reevaluate the entries below the current</label>
       <default>false</default>
     </entry>
     <entry name="WarnAboutSessionRestart" type="Bool">
       <label>Ask for confirmation when restarting the backend</label>
       <default>true</default>
     </entry>
     <entry name="StoreTextEntryFormatting" type="Bool">
       <label>Save rich text formatting of TextEntry, when save Worksheet in Jupyter notebook format</label>
       <default>true</default>
     </entry>
     <entry name="ShowMathRenderError" type="Bool">
       <label>Show embedded math render error</label>
       <default>true</default>
     </entry>
     <entry name="VisibleLinesLimit" type="Int">
       <label>Limit of visible lines for text result</label>
       <default>0</default>
     </entry>
+    <entry name="PathToCantorPluginsDir" type="Url">
+      <label>Path to directory, which contains Cantor plugins (cantorpart and all backends)</label>
+      <default code="true">QUrl::fromLocalFile(QString::fromLocal8Bit(PATH_TO_CANTOR_PLUGINS))</default>
+    </entry>
   </group>
 </kcfg>
 
diff --git a/src/main.cpp b/src/main.cpp
index 3b9f5a57..566b6051 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,154 +1,154 @@
 /*
     This program is free software; you can redistribute it and/or
     modify it under the terms of the GNU General Public License
     as published by the Free Software Foundation; either version 2
     of the License, or (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA  02110-1301, USA.
 
     ---
     Copyright (C) 2009 Alexander Rieder <alexanderrieder@gmail.com>
  */
 
 #include "cantor.h"
 #include <config-cantor.h>
 #include <QApplication>
 #include <KAboutData>
 #include <KCrash>
 #include <Kdelibs4ConfigMigrator>
 #include <KLocalizedString>
 #include <KConfigGroup>
 #include <KMessageBox>
 #include <QCommandLineParser>
 #include <QUrl>
 #include <QFileInfo>
 #include <QDir>
+#include <QDebug>
+
+#include "settings.h"
 
 static const char description[] =
     I18N_NOOP("KDE Frontend to mathematical applications");
 
 int main(int argc, char **argv)
 {
     QApplication app(argc, argv);
 
-#ifdef PATH_TO_CANTOR_PLUGINS
     // Add our custom plugins path, where we install our plugins, if it isn't default path
-    const QString& path = QString::fromLocal8Bit(PATH_TO_CANTOR_PLUGINS);
+    const QString& path = Settings::pathToCantorPluginsDir().toLocalFile();
+    qDebug() << "Adding additional application library path" << path;
     if (!QCoreApplication::libraryPaths().contains(path))
         QCoreApplication::addLibraryPath(path);
-#else
-    qDebug() << "PATH_TO_CANTOR_PLUGINS variable is not set (probably a bug), so use the default library paths";
-#endif
 
     KCrash::initialize();
 
     // Migrating configuration from 4.x applications to KF5-based applications
     QStringList configFiles;
     QStringList rcFiles;
 
     configFiles << QLatin1String("cantorrc");
     rcFiles << QLatin1String("cantor_part.rc") << QLatin1String("cantor_scripteditor.rc")
             << QLatin1String("cantor_shell.rc") << QLatin1String("cantor_advancedplot_assistant.rc")
             << QLatin1String("cantor_differentiate_assistant.rc") << QLatin1String("cantor_import_package_assistant.rc")
             << QLatin1String("cantor_integrate_assistant.rc") << QLatin1String("cantor_create_matrix_assistant.rc")
             << QLatin1String("cantor_eigenvalues_assistant.rc") << QLatin1String("cantor_eigenvectors_assistant.rc")
             << QLatin1String("cantor_invert_matrix_assistant.rc") << QLatin1String("cantor_plot2d_assistant.rc")
             << QLatin1String("cantor_plot3d_assistant.rc") << QLatin1String("cantor_runscript_assistant.rc")
             << QLatin1String("cantor_solve_assistant.rc") << QLatin1String("cantor_qalculateplotassistant.rc");
 
     Kdelibs4ConfigMigrator migrator(QLatin1String("cantor"));
 
     migrator.setConfigFiles(configFiles);
     migrator.setUiFiles(rcFiles);
     migrator.migrate();
     //**********************************
 
     KLocalizedString::setApplicationDomain("cantor");
     app.setApplicationName(QLatin1String("cantor"));
     app.setOrganizationDomain(QLatin1String("kde.org"));
     app.setApplicationDisplayName(i18n("Cantor"));
     app.setWindowIcon(QIcon::fromTheme(QLatin1String("cantor")));
 
     KAboutData about(QLatin1String("cantor"),
                      QLatin1String("Cantor"),
                      QLatin1String(CANTOR_VERSION),
                      i18n(description),
                      KAboutLicense::GPL,
                      i18n("(C) 2016 Filipe Saraiva<br/>(C) 2009-2015 Alexander Rieder"),
                      QString(),
                      QLatin1String("https://cantor.kde.org/"));
 
     about.addAuthor( i18n("Filipe Saraiva"), i18n("Maintainer<br/>Qt5/KF5 port, Scilab and Python backends"), QLatin1String("filipe@kde.org"), QLatin1String("http://filipesaraiva.info/") );
     about.addAuthor( i18n("Nikita Sirgienko"), i18nc("@info:credit", "Developer"), QLatin1String("warquark@gmail.com>"));
     about.addAuthor( i18n("Alexander Semke"), i18nc("@info:credit", "Developer"), QLatin1String("alexander.semke@web.de"));
     about.addAuthor( i18n("Alexander Rieder"), i18n("Original author<br/>Maintainer (2009 - 2015)"), QLatin1String("alexanderrieder@gmail.com") );
     about.addAuthor( i18n("Aleix Pol Gonzalez"), i18n("KAlgebra backend"), QLatin1String("aleixpol@kde.org") );
     about.addAuthor( i18n("Miha Čančula"), i18n("Octave backend"), QLatin1String("miha.cancula@gmail.com") );
     about.addAuthor( i18n("Martin Küttler"), i18n("Interface"), QLatin1String("martin.kuettler@gmail.com") );
 
     about.addCredit(QLatin1String("Andreas Kainz"), i18n("Cantor icon"), QLatin1String("kainz.a@gmail.com"));
     about.addCredit(QLatin1String("Uri Herrera"), i18n("Cantor icon"), QLatin1String("kaisergreymon99@gmail.com"), QLatin1String("http://nitrux.in/"));
 
     QCommandLineParser parser;
     KAboutData::setApplicationData(about);
 
     const QCommandLineOption backendOption(QStringList()<<QLatin1String("b")<<QLatin1String("backend"), i18n("Use  backend <backend>"), QLatin1String("backend"));
     parser.addOption(backendOption);
 
     parser.addPositionalArgument(QStringLiteral("files"),  i18n("Documents to open."),  QStringLiteral("[files...]"));
 
 
     about.setupCommandLine(&parser);
     parser.process(app);
     about.processCommandLine(&parser);
 
     // see if we are starting with session management
     if (app.isSessionRestored())
         RESTORE(CantorShell)
     else
     {
         // no session.. just start up normally
 
         CantorShell *widget = new CantorShell();
         if ( parser.positionalArguments().count() == 0 )
         {
             if(parser.isSet(QLatin1String("backend")))
             {
                 widget->addWorksheet(parser.value(QLatin1String("backend")));
             }
             else
             {
                 widget->addWorksheet();
             }
         }
         else
         {
             const QStringList& args=parser.positionalArguments();
             for (const QString& filename : args)
             {
                 const QUrl url = QUrl::fromUserInput(filename, QDir::currentPath(), QUrl::AssumeLocalFile);
                 if (url.isValid())
                 {
                     if (url.isLocalFile() && !QFileInfo(url.toLocalFile()).exists())
                         KMessageBox::error(widget, i18n("Couldn't open the file %1", filename), i18n("Cantor"));
                     else
                     {
                         widget->load(url);
                     }
                 }
             }
         }
         widget->show();
     }
 
     return app.exec();
 }
 
diff --git a/src/settings.ui b/src/settings.ui
index fdc085ab..3ffd9df3 100644
--- a/src/settings.ui
+++ b/src/settings.ui
@@ -1,177 +1,200 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>SettingsBase</class>
  <widget class="QWidget" name="SettingsBase">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>845</width>
     <height>631</height>
    </rect>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout_3">
    <item>
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
       <widget class="QLabel" name="label">
        <property name="text">
         <string>Default Backend:</string>
        </property>
       </widget>
      </item>
      <item>
       <widget class="KComboBox" name="kcfg_DefaultBackend">
        <property name="editable">
         <bool>true</bool>
        </property>
       </widget>
      </item>
     </layout>
    </item>
    <item>
     <widget class="QCheckBox" name="kcfg_AutoEval">
      <property name="toolTip">
       <string>When enabled, Cantor will automatically evaluate every entry below the current one.</string>
      </property>
      <property name="text">
       <string>Reevaluate Entries automatically</string>
      </property>
     </widget>
    </item>
    <item>
     <layout class="QVBoxLayout" name="verticalLayout">
      <item>
       <widget class="QGroupBox" name="groupBox">
        <property name="title">
         <string>Defaults</string>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_2">
         <item>
          <widget class="QCheckBox" name="kcfg_TypesetDefault">
           <property name="text">
            <string>Enable LaTeX Typesetting (works only if latex is installed)</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QCheckBox" name="kcfg_HighlightDefault">
           <property name="text">
            <string>Enable Syntax Highlighting</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QCheckBox" name="kcfg_CompletionDefault">
           <property name="text">
            <string>Enable Completion</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QCheckBox" name="kcfg_ExpressionNumberingDefault">
           <property name="text">
            <string>Enable Line Numbers</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QCheckBox" name="kcfg_AnimationDefault">
           <property name="text">
            <string>Enable Worksheet Animations</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QCheckBox" name="kcfg_EmbeddedMathDefault">
           <property name="text">
            <string>Enable Embedded Math (works only if pdflatex is installed)</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QCheckBox" name="kcfg_WarnAboutSessionRestart">
           <property name="text">
            <string>Ask for confirmation when restarting the backend</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QCheckBox" name="kcfg_ShowMathRenderError">
           <property name="text">
            <string>Show message about error on render failure of embedded math</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QSplitter" name="splitter">
           <property name="orientation">
            <enum>Qt::Horizontal</enum>
           </property>
           <widget class="QLabel" name="VisibleLinesLimit_label">
            <property name="toolTip">
             <string>Maximal number of visible rows in the result of a command entry. Use 0 to work without limitations.</string>
            </property>
            <property name="text">
             <string>Maximal number of result visible rows (0 for unlimited):</string>
            </property>
           </widget>
           <widget class="QSpinBox" name="kcfg_VisibleLinesLimit">
            <property name="toolTip">
             <string/>
            </property>
            <property name="maximum">
             <number>10000</number>
            </property>
            <property name="value">
             <number>0</number>
            </property>
           </widget>
          </widget>
         </item>
        </layout>
       </widget>
      </item>
      <item>
       <widget class="QGroupBox" name="groupBox1">
        <property name="title">
         <string>Jupyter</string>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_4">
         <item>
          <widget class="QCheckBox" name="kcfg_StoreTextEntryFormatting">
           <property name="text">
            <string>Save rich text formatting of TextEntry, when save Worksheet in Jupyter notebook format</string>
           </property>
          </widget>
         </item>
        </layout>
       </widget>
      </item>
+     <item>
+      <widget class="QGroupBox" name="groupBox2">
+       <property name="title">
+        <string>Paths (advance settings)</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_5">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout2">
+          <item>
+           <widget class="QLabel" name="label2">
+            <property name="text">
+             <string>Path to Cantor plugin directory:</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="KUrlRequester" name="kcfg_PathToCantorPluginsDir"/>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+     </item>
     </layout>
    </item>
    <item>
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
      </property>
      <property name="sizeHint" stdset="0">
       <size>
        <width>20</width>
        <height>40</height>
       </size>
      </property>
     </spacer>
    </item>
   </layout>
  </widget>
  <customwidgets>
   <customwidget>
    <class>KComboBox</class>
    <extends>QComboBox</extends>
    <header>kcombobox.h</header>
   </customwidget>
  </customwidgets>
  <resources/>
  <connections/>
 </ui>