--- /dev/null
+<para>
+ When this option is enabled, we write an additional column called 'Filename'.
+ The values of this column are filled with filenames of previos input formats.
+</para>
+<para>
+ This can be very helpful for locating specific waypoints (i.e. using the position filter)
+ in more than one file.
+</para>
+<example id="unicsv_filename">
+ <title>Example for unicsv filename option to write filenames of input formats.</title>
+ <para>
+ The next example ...
+ <userinput>
+ gpsbabel -i gpx -f file1.gpx -i gdb -f file2.gdb -o unicsv,filename=1 -F result.txt
+ </userinput>
+ ... could produce following output:
+ <simplelist type="vert">
+ <member>No,Latitude,Longitude,Name,Date,Time,Filename</member>
+ <member>1,51.075139,12.463689,"578",2005/04/26,16:27:23,"reference/gdb-sample.gdb"</member>
+ <member>2,51.081104,12.465277,"579",2005/04/26,16:27:23,"reference/gdb-sample.gdb"</member>
+ <member>3,50.844126,12.408757,"580",2005/02/26,10:10:47,"reference/gdb-sample.gpx"</member>
+ <member>4,50.654763,12.204957,"581",2005/02/26,09:57:04,"reference/gdb-sample.gpx"</member>
+ </simplelist>
+ </para>
+</example>
--- /dev/null
+<para>
+ When this option is enabled, we generate an additional 'Format' column.
+ The values of this column are filled with names of previos input formats.
+</para>
+<example id="unicsv_format">
+ <title>Example for unicsv format option to write names of input formats.</title>
+ <para>
+ The next example ...
+ <userinput>
+ gpsbabel -i gpx -f file1.gpx -i gdb -f file2.gdb -o unicsv,format=y -F result.txt
+ </userinput>
+ ... could produce following output:
+ <simplelist type="vert">
+ <member>No,Latitude,Longitude,Name,Description,Symbol,Date,Time,Format</member>
+ <member>1,51.075139,12.463689,"578","578","Waypoint",2005/04/26,16:27:23,"gdb"</member>
+ <member>2,51.081104,12.465277,"579","579","Waypoint",2005/04/26,16:27:23,"gdb"</member>
+ <member>3,50.844126,12.408757,"Gosel","Gosel","Exit",2005/02/26,10:10:47,"gpx"</member>
+ <member>4,50.654763,12.204957,"Greiz",,"Exit",2005/02/26,09:57:04,"gpx"</member>
+ </simplelist>
+ </para>
+</example>
+