Help With IW Courses

Hi, I previously asked this on the official wordpress forums and they told me to ask it here since this plugin is yours.

i’ve taken over my club’s website and was tasked to set up a page where i can show the info for our councellors.
I’ve found out that all of our teachers are posted on the site using what i think is a plugin, and i can see that the entire list of our teachers is posted on that page using this specific string:
[iw_courses_list_teacher theme=”athlete” item_per_page=”18″]

Now I’m trying to figure out how I can edit this string so i only select certain ‘teachers’ instead of all of them.”

I believe this was done using a plugin called ‘IW visual composer addons’ but i’m not sure and can’t find it in the list of plugins the plugins forum part.

If anybody can help me with this i would really appreciate it.