diff --git a/gui/projectfiledialog.cpp b/gui/projectfiledialog.cpp
index 4b26fe2de..c8b9ccdf7 100644
--- a/gui/projectfiledialog.cpp
+++ b/gui/projectfiledialog.cpp
@@ -92,6 +92,7 @@ ProjectFileDialog::ProjectFileDialog(const QString &path, QWidget *parent)
 
     connect(mUI.mButtons, SIGNAL(accepted()), this, SLOT(accept()));
     connect(mUI.mBtnBrowseBuildDir, SIGNAL(clicked()), this, SLOT(browseBuildDir()));
+    connect(mUI.mBtnClearImportProject, SIGNAL(clicked(bool)), this, SLOT(clearImportProject()));
     connect(mUI.mBtnBrowseImportProject, SIGNAL(clicked()), this, SLOT(browseImportProject()));
     connect(mUI.mBtnAddCheckPath, SIGNAL(clicked()), this, SLOT(addCheckPath()));
     connect(mUI.mBtnEditCheckPath, SIGNAL(clicked()), this, SLOT(editCheckPath()));
@@ -138,6 +139,7 @@ void ProjectFileDialog::loadFromProjectFile(const ProjectFile *projectFile)
     setExcludedPaths(projectFile->getExcludedPaths());
     setLibraries(projectFile->getLibraries());
     setSuppressions(projectFile->getSuppressions());
+    updatePathsAndDefines();
 }
 
 void ProjectFileDialog::saveToProjectFile(ProjectFile *projectFile) const
@@ -185,6 +187,26 @@ void ProjectFileDialog::browseBuildDir()
         mUI.mEditBuildDir->setText(dir);
 }
 
+void ProjectFileDialog::updatePathsAndDefines() {
+    bool importProject = !mUI.mEditImportProject->text().isEmpty();
+    mUI.mBtnClearImportProject->setEnabled(importProject);
+    mUI.mListCheckPaths->setEnabled(!importProject);
+    mUI.mBtnAddCheckPath->setEnabled(!importProject);
+    mUI.mBtnEditCheckPath->setEnabled(!importProject);
+    mUI.mBtnRemoveCheckPath->setEnabled(!importProject);
+    mUI.mEditDefines->setEnabled(!importProject);
+    mUI.mBtnAddInclude->setEnabled(!importProject);
+    mUI.mBtnEditInclude->setEnabled(!importProject);
+    mUI.mBtnRemoveInclude->setEnabled(!importProject);
+    mUI.mBtnIncludeUp->setEnabled(!importProject);
+    mUI.mBtnIncludeDown->setEnabled(!importProject);
+}
+
+void ProjectFileDialog::clearImportProject() {
+    mUI.mEditImportProject->clear();
+    updatePathsAndDefines();
+}
+
 void ProjectFileDialog::browseImportProject()
 {
     const QFileInfo inf(mFilePath);
@@ -192,8 +214,15 @@ void ProjectFileDialog::browseImportProject()
     QString fileName = QFileDialog::getOpenFileName(this, tr("Import Project"),
                        dir.canonicalPath(),
                        tr("Visual Studio (*.sln *.vcxproj);;Compile database (compile_database.json)"));
-    if (!fileName.isEmpty())
+    if (!fileName.isEmpty()) {
         mUI.mEditImportProject->setText(dir.relativeFilePath(fileName));
+        updatePathsAndDefines();
+    }
+}
+
+QString ProjectFileDialog::getImportProject() const
+{
+    return mUI.mEditImportProject->text();
 }
 
 void ProjectFileDialog::addIncludeDir(const QString &dir)
@@ -242,10 +271,6 @@ QString ProjectFileDialog::getBuildDir() const
     return mUI.mEditBuildDir->text();
 }
 
-QString ProjectFileDialog::getImportProject() const
-{
-    return mUI.mEditImportProject->text();
-}
 
 QStringList ProjectFileDialog::getIncludePaths() const
 {
diff --git a/gui/projectfiledialog.h b/gui/projectfiledialog.h
index 41db79973..2e27730b2 100644
--- a/gui/projectfiledialog.h
+++ b/gui/projectfiledialog.h
@@ -46,6 +46,10 @@ public:
     void loadFromProjectFile(const ProjectFile *projectFile);
     void saveToProjectFile(ProjectFile *projectFile) const;
 
+private:
+    /** Enable and disable widgets in the 'Paths and Defines' tab */
+    void updatePathsAndDefines();
+
     /**
     * @brief Return project root path from the dialog control.
     * @return Project root path.
@@ -147,6 +151,11 @@ protected slots:
     */
     void browseBuildDir();
 
+    /**
+    * @brief Clear 'import project'.
+    */
+    void clearImportProject();
+
     /**
     * @brief Browse for solution / project / compile database.
     */
diff --git a/gui/projectfiledialog.ui b/gui/projectfiledialog.ui
index 5364c5085..f302fe59e 100644
--- a/gui/projectfiledialog.ui
+++ b/gui/projectfiledialog.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>642</width>
-    <height>434</height>
+    <height>498</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -69,34 +69,6 @@
          </item>
         </layout>
        </item>
-       <item>
-        <layout class="QVBoxLayout" name="verticalLayout_3">
-         <item>
-          <widget class="QLabel" name="mLabelImport">
-           <property name="toolTip">
-            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Cppcheck can import Visual studio solutions (*.sln), Visual studio projects (*.vcxproj) or compile databases.&lt;/p&gt;&lt;p&gt;Files to check, include paths, configurations, defines, platform settings are imported.\n\nLibrary settings are not imported.\n\n&lt;/p&gt;&lt;p&gt;A compile database can be generated from a cmake project using cmake, or from a Makefile project using bear (build ear).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-           </property>
-           <property name="text">
-            <string>Import Project (Visual studio / compile database)</string>
-           </property>
-          </widget>
-         </item>
-         <item>
-          <layout class="QHBoxLayout" name="horizontalLayout">
-           <item>
-            <widget class="QLineEdit" name="mEditImportProject"/>
-           </item>
-           <item>
-            <widget class="QPushButton" name="mBtnBrowseImportProject">
-             <property name="text">
-              <string>...</string>
-             </property>
-            </widget>
-           </item>
-          </layout>
-         </item>
-        </layout>
-       </item>
        <item>
         <layout class="QHBoxLayout" name="mLayoutLibraries">
          <item>
@@ -137,7 +109,61 @@
       <attribute name="title">
        <string>Paths and Defines</string>
       </attribute>
-      <layout class="QVBoxLayout" name="verticalLayout_10">
+      <layout class="QVBoxLayout" name="verticalLayout_8">
+       <item>
+        <layout class="QVBoxLayout" name="verticalLayout_3">
+         <item>
+          <widget class="QLabel" name="mLabelImport">
+           <property name="toolTip">
+            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Cppcheck can import Visual studio solutions (*.sln), Visual studio projects (*.vcxproj) or compile databases.&lt;/p&gt;&lt;p&gt;Files to check, defines, include paths are imported.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+           <property name="text">
+            <string>Import Project (Visual studio / compile database)</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <layout class="QHBoxLayout" name="horizontalLayout">
+           <item>
+            <widget class="QLineEdit" name="mEditImportProject">
+             <property name="readOnly">
+              <bool>true</bool>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QPushButton" name="mBtnClearImportProject">
+             <property name="enabled">
+              <bool>false</bool>
+             </property>
+             <property name="text">
+              <string/>
+             </property>
+             <property name="icon">
+              <iconset>
+               <activeon>:/images/edit-clear.png</activeon>
+              </iconset>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QPushButton" name="mBtnBrowseImportProject">
+             <property name="text">
+              <string>...</string>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="Line" name="line">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
        <item>
         <layout class="QHBoxLayout" name="mLayoutCheckPaths">
          <item>