Just started using the dazzling theme and love it.
My question, I hope is quick. 
Is there a way to control the layout of Posts, similar to that of Pages?
I prefer to not have sidebars.
Thanks in advance!
Unfortunately there isn’t such option in Theme Option or custom metaboxes, but you can modify this theme to remove sidebar.
For each template file you would like to get rid of sidebar and make page full width you should replace
col-md-8 <?php echo of_get_option( 'site_layout', 'no entry' ); ?>
with
col-md-12
And then remove
<?php get_sidebar(); ?>
Which is usually at the very end of template file. Most likely you want to do this for index.php, archive.php and single.php and other files if you like. You can test around to see how it works and how you would like it to be displayed.