How to close category line

Your other option is to put the route in a KML file and attach that to a single post:

https://code.google.com/p/wordpress-geo-mashup/wiki/Documentation#Save_a_location_by_uploading_a_KML_Attachment

Happy mapping!

I don’t have enough time to fight with KML ??

I have some kind of solution. I’ve used subplugin geo-mashup-custom/info-window.php. In info-window I’ve made condition – if post have no thumbnail it will not be showed. I think this can be done also with custom-field.

<div class="locationinfo post-location-info">
<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
  <div class="storycontent">
    <?php if ( function_exists( 'has_post_thumbnail') and has_post_thumbnail() ) : ?>
     <h3><a href="<?php the_permalink() ?>" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></h3>
    <?php the_post_thumbnail('map-thumb'); ?>
    <?php the_excerpt('custom_excerpt_more','custom_excerpt_length'); ?>
   <?php endif; ?>
  </div>
<?php endwhile; ?>

Good thinking! Anyone wanting more details about how that works, see:

https://code.google.com/p/wordpress-geo-mashup/wiki/Documentation#Customize_the_info_window_and_other_content
https://code.google.com/p/wordpress-geo-mashup/wiki/Documentation#Custom_JavaScript