This is not too hard to do but involves a couple steps.
1) install the plugin 'exec-php' and activate it
2) go to mto->Sub Templates->postformat.php and change the the <h2> section from
HTML Code:
<h2>
<span class="post-format"></span>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" rel="bookmark"><?php the_title(); ?></a>
<?php bfa_comments_popup_link( '0', '1', '%' ); ?>
</h2>
to
HTML Code:
<h2>
<span class="post-format"></span>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" rel="bookmark"><?php the_title(); ?></a>
<?php dynamic_sidebar( 'subheading' ); ?>
<?php bfa_comments_popup_link( '0', '1', '%' ); ?>
</h2>
3) go to mto->Main Templates->single.php and change the the <h1> section from
HTML Code:
<h1>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" rel="bookmark"><?php the_title(); ?></a>
<?php bfa_comments_number(); ?>
</h1>
to
HTML Code:
<h1>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" rel="bookmark"><?php the_title(); ?></a>
<?php dynamic_sidebar( 'subheading' ); ?>
<?php bfa_comments_number(); ?>
</h1>
4) go to mto->Main Templates->page.php and change the the <h1> section from
HTML Code:
<h1>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" rel="bookmark"><?php the_title(); ?></a>
<?php bfa_comments_number(); ?>
</h1>
to
HTML Code:
<h1>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" rel="bookmark"><?php the_title(); ?></a>
<?php dynamic_sidebar( 'subheading' ); ?>
<?php bfa_comments_number(); ?>
</h1>
5) go to Dashboard->Appearances->Widgets and you will see a new widget area called 'subheading', add a 'text' widget to this area
6) add the following to that text widget
HTML Code:
<?php if (function_exists('the_subheading')) { the_subheading('<p class="subheading">', '</p>'); } ?>
that should be it. If you want to change the styling of the subheading you can use something like
HTML Code:
.subheading {color: #00ffff;}
and put it at the end of the 'clearfix.css'