1. The best way is to have the equal number of links in each column (strngth, tone, recovery). You can fill the last column with empty links like this <li> </li>
2. You can change in Visual Composer in this HTML Block in admin panel -> HTML Blocks. Actually the same place where you edit all other links. If Visual Composer is not active there you need to turn it on for HTML Blocks in admin panel -> Visual Composer -> Role Manager -> Post types -> choose custom and select all types.