This is example of 2 columns of links + 1 wide column with post widget. I use here tag with ID 14

Mega menu (2 columns + post widget from tag = 14

[wpsm_column size="one-fifth"]
<h4><i class="fa fa-camera-retro" aria-hidden="true"></i> Cameras and photos</h4>
[wpsm_list type="arrow" darklink="1" gap="small" hover="1"]
<ul>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Camera Electronic</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Camera Appereances</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">DSLR</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Video cameras</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Top cameras</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Cheap cameras</a></li>
</ul>
[/wpsm_list]
<div class="mt20"></div>
<h4><i class="fa fa-camera-retro" aria-hidden="true"></i> Cameras and photos</h4>
[wpsm_list type="arrow" darklink="1" gap="small" hover="1"]
<ul>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Camera Electronic</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Camera Appereances</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">DSLR</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Best cameras</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Luxury Cameras</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Simple Cameras</a></li>
</ul>
[/wpsm_list]
[/wpsm_column]

[wpsm_column size="one-fifth"]
<h4><i class="fa fa-mobile" aria-hidden="true"></i> Phones and Tablets</h4>
[wpsm_list type="arrow" darklink="1" gap="small" hover="1"]
<ul>
<li><a href="http://rewise.wpsoul.net/top-offers-from-posts/">Phone Electronic</a></li>
<li><a href="http://rewise.wpsoul.net/top-offers-from-posts/">Android phones</a></li>
<li><a href="http://rewise.wpsoul.net/top-offers-from-posts/">Iphone phones</a></li>
<li><a href="http://rewise.wpsoul.net/top-offers-from-posts/">Chinese phones</a></li>
<li><a href="http://rewise.wpsoul.net/top-offers-from-posts/">Google phones</a></li>
<li><a href="http://rewise.wpsoul.net/top-offers-from-posts/">Top phones</a></li>
</ul>
[/wpsm_list]
<div class="mt20"></div>
<h4><i class="fa fa-camera-retro" aria-hidden="true"></i> Cameras and photos</h4>
[wpsm_list type="arrow" darklink="1" gap="small" hover="1"]
<ul>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Camera Electronic</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Camera Appereances</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">DSLR</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Best cameras</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Luxury Cameras</a></li>
<li><a href="http://rewise.wpsoul.net/top-page-with-review-list/">Simple Cameras</a></li>
</ul>
[/wpsm_list]
[/wpsm_column]

[wpsm_column size="three-fifth" position="last"]
<h4>Latest best reviews</h4>
[news_with_thumbs_mod module_tags="14"]
[/wpsm_column]