How to add a new tab into the single listing page

  1. Open file content-single-listing.php
  2. Locate line 288 which should look like this 
  3. Below it add this code - which will add a new tab 
  4. Now you need to add the content of the tab, to do so, locate line 324 or 323 which will be empty.
  5. Add the following snippet to show the content of the new custom tab named #tab-7
  6. Repeat the same steps for more tabs - remember you must change the number of the tab from 7, to 8, to 9, etc.