fgdata/Aircraft/Generic/marker.xml

<?xml version="1.0"?>
<PropertyList>
	<!-- marker for tutorial system -->
	<path>marker.ac</path>
	<nopreview/>

	<animation>
		<name>cross</name>
		<object-name>x</object-name>
		<object-name>y</object-name>
		<object-name>z</object-name>
	</animation>

	<animation>
		<name>marker</name>
		<object-name>cross</object-name>
		<object-name>arrow</object-name>
		<enable-hot>false</enable-hot>
	</animation>

	<animation>
		<type>noshadow</type>
		<object-name>marker</object-name>
	</animation>

	<animation>
		<type>billboard</type>
		<object-name>arrow</object-name>
	</animation>

	<animation>
		<type>scale</type>
		<object-name>arrow</object-name>
		<property>sim/model/marker/scale/value</property>
		<x-factor>1</x-factor>
		<y-factor>1</y-factor>
		<z-factor>1</z-factor>
		<x-offset>0</x-offset>
		<y-offset>0</y-offset>
		<z-offset>0</z-offset>
	</animation>

	<animation>
		<type>timed</type>
		<object-name>arrow</object-name>
		<object-name>null</object-name>
		<duration-sec>0.5</duration-sec>
	</animation>

	<animation>
		<type>select</type>
		<object-name>arrow</object-name>
		<condition>
			<property>sim/model/marker/arrow-enabled</property>
		</condition>
	</animation>

	<animation>
		<type>select</type>
		<object-name>cross</object-name>
		<condition>
			<property>sim/model/marker/cross-enabled</property>
		</condition>
	</animation>

	<animation>
		<type>translate</type>
		<object-name>marker</object-name>
		<property>sim/model/marker/x/value</property>
		<axis>
			<x>1</x>
			<y>0</y>
			<z>0</z>
		</axis>
	</animation>

	<animation>
		<type>translate</type>
		<object-name>marker</object-name>
		<property>sim/model/marker/y/value</property>
		<axis>
			<x>0</x>
			<y>1</y>
			<z>0</z>
		</axis>
	</animation>

	<animation>
		<type>translate</type>
		<object-name>marker</object-name>
		<property>sim/model/marker/z/value</property>
		<axis>
			<x>0</x>
			<y>0</y>
			<z>1</z>
		</axis>
	</animation>
</PropertyList>