fgdata/gui/dialogs/atc-ai.xml

<?xml version="1.0"?>

<PropertyList>

 <!-- General ATC/AI options -->

 <name>atc-ai</name>
 <width>300</width>
 <height>240</height>
 <modal>false</modal>

 <text>
  <x>80</x>
  <y>200</y>
  <label>ATC/AI Options</label>
 </text>

 <checkbox>
  <x>30</x>
  <y>160</y>
  <width>20</width>
  <height>20</height>
  <label>Enable ATC</label>
  <property>/sim/ATC/enabled</property>
 </checkbox>

 <checkbox>
  <x>30</x>
  <y>130</y>
  <width>20</width>
  <height>20</height>
  <label>Enable AI traffic</label>
  <property>/sim/ai-traffic/enabled</property>
 </checkbox>
 
  <text>
   <x>30</x>
   <y>100</y>
   <label>AI traffic density:</label>
  </text>

  <combo>
   <x>30</x>
   <y>80</y>
   <width>200</width>
   <height>25</height>
   <property>/sim/ai-traffic/level</property>
   <value>1</value>
   <value>2</value>
   <value>3</value>
  </combo>
 
 <group>
  <y>10</y>

  <button>
   <x>10</x>
   <y>0</y>
   <legend>OK</legend>
   <binding>
    <command>dialog-apply</command>
   </binding>
   <binding>
    <command>dialog-close</command>
   </binding>
   <default>true</default>
  </button>

  <button>
   <x>60</x>
   <y>0</y>
   <legend>Apply</legend>
   <binding>
    <command>dialog-apply</command>
   </binding>
  </button>

  <button>
   <x>140</x>
   <y>0</y>
   <legend>Reset</legend>
   <binding>
    <command>dialog-update</command>
   </binding>
  </button>

  <button>
   <x>220</x>
   <y>0</y>
   <legend>Cancel</legend>
   <binding>
    <command>dialog-close</command>
   </binding>
  </button>

 </group>
 
</PropertyList>