Create collection relationships to all other collections

Thank you Grant, for these explanations.

However, I am still stuck in the same place. That is to say, I am unable to create a New Collection Relationship Type with two collections that are not in the same disciplines. On the form, I am unable to access the other collections.

I tried to follow the advice here

but I didn’t quite understand what exactly I needed to do. I created right and left picklists in two test collections (Paleo Collection and Historical Context), but it doesn’t work.



What should I do?

Furthermore, when I try to create a new Collection Relationship view, I can’t because an error message appears.