How to place the advanced map on top of a page
All it takes to get it on a page is the shortcode. Either through a widget or written in the php of the theme.
Add a shortcode if your theme supports a full width widget eg:
[advanced_map post_type="rental" limit="30"]
or copy the template file from plugins/easy-property-listings/lib/templates/themes/default/archive-listing.php into your child theme folder.
then edit that php file then use the do_shortcode() function where you want the map to appear.
<?php echo do_shortcode('[advanced_map post_type="rental"]'); ?>
(adjust the advanced map shortcode options) like here.