@digim,

From the editor side, you are working with the repeating group, that is placed into the courseReusable element. To better understanding how to work with the data in repeating groups, please check these educational resources:
https://manual.bubble.io/working-with-data/displaying-data#displaying-a-single-element-in-a-group

The point is - you can edit the structure of the elements, nested within the reusable element. But if you want to change the data (content), that is stored inside the reusable element - you should interact with the App Data.


So, I think, it will be better if you get some more Bubble knowledge first. These resources should help you:

Regards,
Zeroqode Team