In the example below I would like to have ‘Content Sorting: Number of common tags’ option avaible only when ‘Content Settings: Filtering by tags’ is selected by the user. Both Content Settings and Content Sorting are referenced content. I do not see any options to achieve this, Field Rules are insufficient in this case.
I see. I will have a look how this can be implemented. It is challenging because it could change during an edit session. So I cannot promise anything. You could also implement this use case with a custom editor.