diff --git a/hexrd/ui/image_stack_dialog.py b/hexrd/ui/image_stack_dialog.py
index 965a9eb71..024d20c0d 100644
--- a/hexrd/ui/image_stack_dialog.py
+++ b/hexrd/ui/image_stack_dialog.py
@@ -2,7 +2,7 @@
 import numpy as np
 from pathlib import Path
 
-from PySide2.QtCore import QObject, Signal
+from PySide2.QtCore import QObject, Signal, Qt
 from PySide2.QtWidgets import QFileDialog, QMessageBox, QTableWidgetItem
 
 from hexrd.ui.constants import MAXIMUM_OMEGA_RANGE
@@ -20,6 +20,8 @@ def __init__(self, parent=None, simple_image_series_dialog=None):
         super(ImageStackDialog, self).__init__(parent)
         loader = UiLoader()
         self.ui = loader.load_file('image_stack_dialog.ui', parent)
+        flags = self.ui.windowFlags()
+        self.ui.setWindowFlags(flags | Qt.Tool)
 
         self.simple_image_series_dialog = simple_image_series_dialog
         self.detectors = HexrdConfig().detector_names
diff --git a/hexrd/ui/llnl_import_tool_dialog.py b/hexrd/ui/llnl_import_tool_dialog.py
index 87b0c73d8..3c217f181 100644
--- a/hexrd/ui/llnl_import_tool_dialog.py
+++ b/hexrd/ui/llnl_import_tool_dialog.py
@@ -4,7 +4,7 @@
 import h5py
 from pathlib import Path
 
-from PySide2.QtCore import QObject, Signal
+from PySide2.QtCore import QObject, Signal, Qt
 from PySide2.QtWidgets import QColorDialog, QFileDialog, QMessageBox
 from PySide2.QtGui import QColor
 
@@ -41,6 +41,9 @@ def __init__(self, cmap=None, parent=None):
 
         loader = UiLoader()
         self.ui = loader.load_file('llnl_import_tool_dialog.ui', parent)
+        flags = self.ui.windowFlags()
+        self.ui.setWindowFlags(flags | Qt.Tool)
+
         self.it = None
         self.instrument = None
         self.edited_images = {}
diff --git a/hexrd/ui/resources/ui/llnl_import_tool_dialog.ui b/hexrd/ui/resources/ui/llnl_import_tool_dialog.ui
index 1c39e7c5d..9f2b79496 100644
--- a/hexrd/ui/resources/ui/llnl_import_tool_dialog.ui
+++ b/hexrd/ui/resources/ui/llnl_import_tool_dialog.ui
@@ -387,9 +387,9 @@
         <property name="checked">
          <bool>true</bool>
         </property>
-        <property name="flat">
-         <bool>true</bool>
-        </property>
+        <attribute name="buttonGroup">
+         <string notr="true">positionOutlineButtons</string>
+        </attribute>
        </widget>
       </item>
       <item row="0" column="1">
@@ -403,6 +403,9 @@
         <property name="checkable">
          <bool>true</bool>
         </property>
+        <attribute name="buttonGroup">
+         <string notr="true">positionOutlineButtons</string>
+        </attribute>
        </widget>
       </item>
       <item row="1" column="1" alignment="Qt::AlignRight">
@@ -735,4 +738,7 @@
    </hints>
   </connection>
  </connections>
+ <buttongroups>
+  <buttongroup name="positionOutlineButtons"/>
+ </buttongroups>
 </ui>
diff --git a/hexrd/ui/simple_image_series_dialog.py b/hexrd/ui/simple_image_series_dialog.py
index d20ab8d0c..cc6c9e07e 100644
--- a/hexrd/ui/simple_image_series_dialog.py
+++ b/hexrd/ui/simple_image_series_dialog.py
@@ -34,6 +34,8 @@ def __init__(self, parent=None):
 
         loader = UiLoader()
         self.ui = loader.load_file('simple_image_series_dialog.ui', parent)
+        flags = self.ui.windowFlags()
+        self.ui.setWindowFlags(flags | Qt.Tool)
 
         self.update_config_variables()