Hi Primo,
Currently there is no setting available to do this. You need to customize the code to achieve this. Please go to this page: /components/com_easyblog/themes/default/toolbar.php and find this line: 78.
Please update the code from:
<h2 class="component-title reset-h"><?php echo JText::_( $title ); ?></h2>
To this:
<h2 class="component-title reset-h"><a href="<?php echo EasyBlogRouter::_('index.php?option=com_easyblog'); ?>"><?php echo JText::_( $title ); ?></a></h2>
Hope this helps. If you unable to do this, kindly please provide us backend access and FTP access so that we can help you fix this.
Please advise.