Hi Paoletto82,m
I think what you want is to register a sidebar widget for your footer on functions.php like (search for register_sidebar and add just below the one(s) that will be ther by default)
register_sidebar( array (
'name' => 'Footer Area',
'id' => 'footer_widget_area',
'before_widget' => '<div id="%1$s" class="widget-container %2$s">',
'after_widget' => "</div>",
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
Go to the Widgets and drag and drop this and any other plugin you want to put on the footer than on footer.php call like this:
<?php if ( is_sidebar_active('footer_widget_area') ) : ?>
<?php dynamic_sidebar('footer_widget_area'); ?>
<?php endif; ?>
Hope it helps!!