Please note: according to ThemeForest Support Policy, Item Customization is not included in item support:
Item support does not include services to modify or extend the item beyond the original features, style and functionality described on the item page. For customization services that will help you tailor the item to your specific requirements, we recommend contacting the author to see if they privately offer paid customisation services.
And as we don’t provide any customization service, when you need help with item customization, we recommend hire a developer to do the customization work for you.