Hello,
Thank you for reaching out!
Currently, there can be selected only one co-instructor for courses. We will try improve this feature in case if we will get such kind of requests from our users experiences. Our team always ready to improve LMS plugin based on the users feedbacks, so I recommend you write this kind of suggestion in our features request section of the Master Study LMS > https://stylemixthemes.cnflx.io/boards/masterstudy-lms
We will include additional features/options according to the popularity of the requests from our dear customers
Best regards
