diff --git a/.gitmodules b/.gitmodules
index 4ce99fc4..112af4ca 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,7 +10,7 @@
 	url = https://github.com/kainjow/Mustache.git
 [submodule "third_party/fastpbkdf2"]
 	path = third_party/fastpbkdf2
-	url = https://github.com/danpashin/fastpbkdf2.git
+	url = https://github.com/ctz/fastpbkdf2.git
 [submodule "third_party/mongoose"]
 	path = third_party/mongoose
 	url = https://github.com/cesanta/mongoose.git
diff --git a/src/cfrmmdf.ui b/src/cfrmmdf.ui
index 8d5ef2e0..8fc318f4 100644
--- a/src/cfrmmdf.ui
+++ b/src/cfrmmdf.ui
@@ -141,6 +141,9 @@
       <layout class="QVBoxLayout" name="verticalLayout_2">
        <item>
         <widget class="QToolButton" name="btnAdd">
+         <property name="enabled">
+          <bool>false</bool>
+         </property>
          <property name="toolTip">
           <string>Add action parameter  item</string>
          </property>
@@ -158,6 +161,9 @@
        </item>
        <item>
         <widget class="QToolButton" name="btnEdit">
+         <property name="enabled">
+          <bool>false</bool>
+         </property>
          <property name="toolTip">
           <string>Edit action parameter item</string>
          </property>
@@ -175,6 +181,9 @@
        </item>
        <item>
         <widget class="QToolButton" name="btnDup">
+         <property name="enabled">
+          <bool>false</bool>
+         </property>
          <property name="toolTip">
           <string>Duplicate action parameter item</string>
          </property>
@@ -192,6 +201,9 @@
        </item>
        <item>
         <widget class="QToolButton" name="btnDelete">
+         <property name="enabled">
+          <bool>false</bool>
+         </property>
          <property name="toolTip">
           <string>Delete action parameter item</string>
          </property>