<para>
	Convert route number 'index' from source into sdf format.
</para>
<para>
	We have a lot of more expressive formats thats support more than one route.
	At this place sdf files are limited to only one single route. With option index
	you can specify which route from source should be converted.
</para>
<para>
	Our default index is 1.
</para>
<para>
	This example will convert route number two and three into separate sdf files:
</para>
	<para><userinput> gpsbabel -i gdb -f routes.gdb -r -o stmsdf,index=2 -F route-one.sdf -r -o stmsdf,index=3 -F route-three.sdf </userinput></para>
