Show information in detail view from related module

I have the next problem : i have 2 custom modules - School groups and Teachers. The relationship of these modules is many-to-many. So when i go to detail view of some school group i choose in subpanel the teacher(s) of this group. But i also need to see this information about teachers in some field of group card in detail view and listview. How can i do it? I’ve read about logic hooks and some method changing views/view.details,php, but it turned out that custom modules don’t have this folder. I’m confused and need to do it as soon as possible. Help me please! Thanks :slight_smile:

You can just add the missing views and any files you need yourself to the modules in the custom folder.

Thanks for answer! But which structure should i use to add?