Default tab

I am using Custom Product Tabs Pro and Travel WP Child theme 1.0.1. I am trying to change the default tab to show a custom tab (special offer in this case) when available instead of description first but when I contacted support for Custom Product Tabs they said it looks like the theme settings are preventing me from being able to change the default tabs. How can I fix that?

note: I don’t need the tabs to show up in a different order but it’s ok if they do. I just need the special offer tab to be open when you click the link instead of the description tab.

The page I need help with: [log in to see the link]