diff --git a/configtool/displaypage.py b/configtool/displaypage.py
index 5f5dd13..e1bf0bd 100644
--- a/configtool/displaypage.py
+++ b/configtool/displaypage.py
@@ -9,55 +9,20 @@ class DisplayPage(wx.Panel, Page):
     self.parent = parent
     self.id = idPg
 
-    self.displayBusKeys = ['DISPLAY_BUS_4BIT', 'DISPLAY_BUS_8BIT',
-                           'DISPLAY_BUS_I2C', 'DISPLAY_BUS_SPI']
-
-    self.displayTypeKeys = ['DISPLAY_TYPE_SSD1306', 'DISPLAY_TYPE_LCD1302']
-
     self.labels = {'DISPLAY_BUS': "Display Bus:",
                    'DISPLAY_TYPE': "Display Type:"}
 
     sz = wx.GridBagSizer()
     sz.AddSpacer((20, 40), pos = (0, 0))
 
-    k = 'DISPLAY_BUS'
-    ch = self.addChoice(k, ['(disabled)'] + self.displayBusKeys, 0, 100,
-                        self.onChoice, size = (140, -1))
+    ch = self.addBoolChoice('DISPLAY_BUS', True, 100, self.onChoice,
+                            size = (140, -1))
     sz.Add(ch, pos = (1, 1))
     sz.AddSpacer((100, 10), pos = (1, 2))
 
-    k = 'DISPLAY_TYPE'
-    ch = self.addChoice(k, self.displayTypeKeys, 0, 100, self.onChoice,
-                        size = (200, -1))
+    ch = self.addBoolChoice('DISPLAY_TYPE', False, 100, self.onChoice,
+                            size = (200, -1))
     sz.Add(ch, pos = (1, 3))
 
     self.SetSizer(sz)
     self.enableAll(False)
-
-  def insertValues(self, cfgValues):
-    Page.insertValues(self, cfgValues)
-
-    k = 'DISPLAY_BUS'
-    for tag in self.displayBusKeys:
-      if tag in cfgValues.keys() and cfgValues[tag]:
-        self.setChoice(k, cfgValues, tag)
-        break
-
-    k = 'DISPLAY_TYPE'
-    for tag in self.displayTypeKeys:
-      if tag in cfgValues.keys() and cfgValues[tag]:
-        self.setChoice(k, cfgValues, tag)
-        break
-
-  def getValues(self):
-    result = Page.getValues(self)
-
-    # Convert values to a set of booleans.
-    for k in self.choices:
-      del result[k]
-
-      choice = self.choices[k]
-      for i in range(choice.GetCount()):
-        result[choice.GetString(i)] = (i == choice.GetSelection())
-
-    return result
diff --git a/configtool/page.py b/configtool/page.py
index 7506cdb..b75d450 100644
--- a/configtool/page.py
+++ b/configtool/page.py
@@ -17,6 +17,7 @@ class Page:
     self.radioButtonBoxes = {}
     self.choices = {}
     self.choicesOriginal = {}
+    self.boolChoices = {}
     self.deco = Decoration()
     self.font = font
 
@@ -116,6 +117,30 @@ class Page:
 
     return lsz
 
+  # addChoice handles #defines with value, this handles choices for
+  # sets of boolean #defines.
+  def addBoolChoice(self, name, allowBlank, labelWidth, validator,
+                    size = (-1, -1)):
+    lsz = wx.BoxSizer(wx.HORIZONTAL)
+    st = wx.StaticText(self, wx.ID_ANY, self.labels[name],
+                       size = (labelWidth, -1), style = wx.ALIGN_RIGHT)
+    st.SetFont(self.font)
+    lsz.Add(st, 1, wx.TOP, offsetChLabel)
+
+    ch = wx.Choice(self, wx.ID_ANY, size = size, name = name)
+    ch.SetBackgroundColour(self.deco.getBackgroundColour())
+    ch.SetFont(self.font)
+    ch.Bind(wx.EVT_CHOICE, validator)
+
+    if allowBlank:
+      ch.Append("(none)")
+      ch.SetSelection(0)
+
+    lsz.Add(ch)
+    self.boolChoices[name] = ch
+
+    return lsz
+
   def setChoice(self, name, cfgValues, default):
     if name in cfgValues.keys() and cfgValues[name][1] == True:
       bv = cfgValues[name][0]
@@ -235,6 +260,21 @@ class Page:
       else:
         print "Key " + k + " not found in config data."
 
+    for k in self.boolChoices.keys():
+      choice = self.boolChoices[k]
+
+      # Remove items left behind from the previous configuration.
+      while (choice.GetCount() and
+             not choice.GetString(choice.GetCount() - 1).startswith('(')):
+        choice.Delete(choice.GetCount() - 1)
+
+      # Add items found in this configuration.
+      for cfg in cfgValues.keys():
+        if cfg.startswith(k):
+          choice.Append(cfg)
+          if cfgValues[cfg]:
+            choice.SetSelection(choice.GetCount() - 1)
+
     self.assertModified(False)
 
   def getValues(self):
@@ -262,6 +302,13 @@ class Page:
       v = self.choices[k].GetSelection()
       result[k] = self.choices[k].GetString(v), True
 
+    for k in self.boolChoices.keys():
+      choice = self.boolChoices[k]
+      for i in range(choice.GetCount()):
+        s = choice.GetString(i)
+        if not s.startswith('('):
+          result[s] = (i == choice.GetSelection())
+
     return result
 
   def assertModified(self, flag):