Create menu link in admin

hi,
I built a custom payment gateway extension for Opencart but I am having this challenge:
1. I need to create an extra column on the orders table
2. This column will hold a hyperlink that contains the orderid in a hyperlink
3. Clicking the hyperlink performs a custom function in my controller.

Kindly advise on how I can achieve this . I can provide screenshots and images if the explanation is not clear enough.

Thanks