I think it is best I pass this ticket directly to Christian, since he is already familiar with the topic.
He will be with you tomorrow.
Thank you for the patience!
The shortcode you have implemented depends on term ID for ordering terms. It assumes that you create the high-level terms before the low-level terms, so "język polski (PL)" should have a lower ID than its child terms. Can you tell me the term ID of each of these terms?
PL > PJM
PL > SJM
PL > IS
język polski (PL)
PL > PJM - 4491
PL > SJM - 4490
PL > IS - 4489
język polski (PL) - 16
Is it possible to distinguish parent taxonomies on the list?
I'm afraid it's not possible to distinguish between hierarchical levels in this type of display. You could implement a nested View that would accomplish something like that.
- Create a View of your taxonomy filtered by taxonomy term, where the term is supplied by the current post or page. Add another filter that filters by taxonomy parent, where the parent term is "None". In the Loop Output, include the top-level term using [wpv-taxonomy-title].
- Create another View of your taxonomy filtered by taxonomy parent, where the parent is determined by the parent taxonomy View. In the Loop Output, include the lower-level term using [wpv-taxonomy-title]. Place this View in the Loop Output of the previous View.
Let me know how you would like to proceed here.