Index: src/sas/qtgui/Perspectives/Fitting/UI/ComplexConstraintUI.ui
===================================================================
--- src/sas/qtgui/Perspectives/Fitting/UI/ComplexConstraintUI.ui	(revision ecc5d043d6933e0e4e9f6695fd4729a511e4addf)
+++ src/sas/qtgui/Perspectives/Fitting/UI/ComplexConstraintUI.ui	(revision 2e5081b2a117b9a669d7a4e9140a869330133676)
@@ -7,6 +7,6 @@
     <x>0</x>
     <y>0</y>
-    <width>478</width>
-    <height>257</height>
+    <width>496</width>
+    <height>260</height>
    </rect>
   </property>
@@ -21,4 +21,59 @@
      </property>
      <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="0">
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <widget class="QComboBox" name="cbModel1"/>
+        </item>
+        <item>
+         <widget class="QComboBox" name="cbParam1">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="sizeAdjustPolicy">
+           <enum>QComboBox::AdjustToContents</enum>
+          </property>
+          <item>
+           <property name="text">
+            <string>sld</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="cbOperator">
+          <item>
+           <property name="text">
+            <string>&gt;</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="cbModel2"/>
+        </item>
+        <item>
+         <widget class="QComboBox" name="cbParam2">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="sizeAdjustPolicy">
+           <enum>QComboBox::AdjustToContents</enum>
+          </property>
+          <item>
+           <property name="text">
+            <string>sld_a</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+       </layout>
+      </item>
       <item row="1" column="0">
        <layout class="QHBoxLayout" name="horizontalLayout_2">
@@ -52,87 +107,4 @@
        </layout>
       </item>
-      <item row="0" column="0">
-       <layout class="QHBoxLayout" name="horizontalLayout">
-        <item>
-         <widget class="QLabel" name="txtName1">
-          <property name="text">
-           <string>name1</string>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QComboBox" name="cbParam1">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
-          </property>
-          <property name="sizeAdjustPolicy">
-           <enum>QComboBox::AdjustToContents</enum>
-          </property>
-          <item>
-           <property name="text">
-            <string>sld</string>
-           </property>
-          </item>
-         </widget>
-        </item>
-        <item>
-         <widget class="QComboBox" name="cbOperator">
-          <item>
-           <property name="text">
-            <string>&gt;</string>
-           </property>
-          </item>
-         </widget>
-        </item>
-        <item>
-         <widget class="QLabel" name="txtName2">
-          <property name="text">
-           <string>name2</string>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QComboBox" name="cbParam2">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
-          </property>
-          <property name="sizeAdjustPolicy">
-           <enum>QComboBox::AdjustToContents</enum>
-          </property>
-          <item>
-           <property name="text">
-            <string>sld_a</string>
-           </property>
-          </item>
-         </widget>
-        </item>
-        <item>
-         <spacer name="horizontalSpacer">
-          <property name="orientation">
-           <enum>Qt::Horizontal</enum>
-          </property>
-          <property name="sizeHint" stdset="0">
-           <size>
-            <width>40</width>
-            <height>20</height>
-           </size>
-          </property>
-         </spacer>
-        </item>
-        <item>
-         <widget class="QPushButton" name="cmdRevert">
-          <property name="text">
-           <string>Swap</string>
-          </property>
-         </widget>
-        </item>
-       </layout>
-      </item>
      </layout>
     </widget>
@@ -188,5 +160,5 @@
        </property>
        <property name="popupMode">
-        <enum>QToolButton::MenuButtonPopup</enum>
+        <enum>QToolButton::InstantPopup</enum>
        </property>
        <property name="toolButtonStyle">
