fgdata/gui/dialogs/weather_scenario.xml

<?xml version="1.0"?>

<PropertyList>
  <name>weather_scenario</name>
  <modal>false</modal>
  <layout>vbox</layout>

  <text>
    <label>Weather Scenario</label>
  </text>

  <hrule><dummy/></hrule>

  <text>
    <label></label>
  </text>

  <group>
    <layout>hbox</layout>
    <text>
      <label>Weather source</label>
      <halign>left</halign>
    </text>
    <combo>
      <pref-width>200</pref-width>
      <property>/environment/weather-scenario</property>
      <value>Fair weather</value>
      <value>Thunderstorm</value>
      <value>METAR</value>
      <value>none</value>
      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>nasal</command>
        <script>
          setprop("/environment/rebuild_layers", getprop("/environment/rebuild_layers")+1);
        </script>
      </binding>
    </combo>
  </group>

  <text><label>Last metar used</label></text>
  <textbox>
    <pref-width>400</pref-width>
    <pref-height>120</pref-height>
    <slider>12</slider>
    <live>true</live>
    <wrap>true</wrap>
    <editable>false</editable>
    <property>/environment/metar/last-metar</property>
  </textbox>

  <text>
    <label></label>
  </text>

  <group>
    <layout>hbox</layout>
    <empty><stretch>true</stretch></empty>

    <button>
      <legend>Close</legend>
      <default>true</default>
      <key>Esc</key>
      <binding>
        <command>dialog-apply</command>
      </binding>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>

    <empty><stretch>true</stretch></empty>
  </group>
</PropertyList>