Enable checkBox, though the the check status does not take effect...
diff --git a/src/startchatdialog.ui b/src/startchatdialog.ui
index 9451b51..d22cde3 100644
--- a/src/startchatdialog.ui
+++ b/src/startchatdialog.ui
@@ -81,7 +81,7 @@
     <string>Set invitee as introducer</string>
    </property>
    <property name="checkable">
-    <bool>false</bool>
+    <bool>true</bool>
    </property>
   </widget>
  </widget>