Right now there is no out of the box option to print any XML tag in the RSS feed. I have this item in my todo list. I don’t have an exact release date yet.
But for now you can add below line to display the “location” tag you want.
In plugin editor edit super-rss-reader-pro/includes/feed.php file and insert below line after line 250.
$loc = $item->get_item_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'location');
$t_desc .= '<em>' . $loc['data'] . '</em>';
So it looks like this.
This will display the location after description like below.