Hello Ulrich

Maybe you should use a database tool.

I have an example here : http://eksempelsite.dk/udstillinger/Udstilling_view.php?t=1608649505

This is a databse with exhibitions. To an exhibition is connected the works that is displayed. To a work is connected an artist.

You can get to the works through an exhibition - example : http://eksempelsite.dk/udstillinger/Udstilling_view.php?SelectedID=1

Or through an artist - example here : http://eksempelsite.dk/udstillinger/kunstner_view.php?SelectedID=1

In both cases you should click the "Emne"

You will then see a list of all works for an exhibition : http://eksempelsite.dk/udstillinger/Emne_view.php?filterer_Udstilling=1&

Or

All works for an artist : http://eksempelsite.dk/udstillinger/Emne_view.php?filterer_kunstner=1&

You will see the list to the left and then the detail-view to the right.

For the tables can be set credentials : who is allowed to create new records, edit records, delete records. It can be set for a user or a group of users.

I would say it could be dynamically.

The example is made with Appgini. Such an application as the example could be made in half a day.

AppGini is a database tool. X5 is a website creation tool.

You can see another example here : http://eksempelsite.dk/side-4.html where the database is integrated in a X5 page via an iframe.

If you could give more information of how the course data should be used and presented, then we could maybe give better suggestions.