1. How to edit the Footer section

Nex - Factory & Industrial WordPress Theme comes with one demo footer template:

You can edit its content using the Vamtam Beaver Builder: Guide to Vamtam Beaver Builder

Please go to Dashboard > Vamtam Builder > Templates > locate the Footer template and click the VamTam Builder link:

You can edit each of the elements, add or remove some of them. 

In order to save your changes please click on the Done button, next Publish Changes.

2. How to disable the Footer section 

In case you need to select a different template or disable the Footer section, please go to Customize > Footer > Footer Template

3. Troubleshooting

In case that you don't see the Builder button in your dashboard, please go to Appearance > VamTam Builder > User Access tab 

Next, locate the Admin section > click on Select field > click on Select All link

At the end, click Save User Access settings button.


4. How to recover the Footer template 

If you've deleted the Footer template and you need to recover it, please download the attached file (click with the right mouse button and then Save As XML) and import it into your installation following the steps below: 

Step 1:

Dashboard > Tools > Import > WordPress

Step 2:

If you haven't installed WordPress Importer plugin you'll see an error. Please proceed to install the plugin:

Step 3:

Please choose the import file, then click on the "Upload file and import" button.

Step 4:

Please assign posts to an existing user - choose from the drop-down menu. Please make a tick to "Download and import attachments" and click on the "Submit" button.

Step 5:

You'll see All done! on your Dashboard if everything is imported correctly:

Source: http://kb.wpbeaverbuilder.com/article/89-export-and-import-saved-templates-rows-and-modules