Tell us what you are trying to do? On this page: hidden link I have a select field for the Taxonomy (Region, Destination, Locations). Now I like to limit, that it's showing only from a main category and it's sub-categories.
So instead of all categories, it should show only Thailand and the sub-categories
If I have a predefined taxonomy filter in the view, i can't have and use a select field afterwards with the sub-levels.
This I would like to have, if possible.
If I don't use a filter, then I can have a select field in the search form, but there I have all taxonomies in - depending on the url parameter, predefined the taxonomy. But the other taxonomies I will still see.
For the multi-level search filters that you're planning to use, I'm afraid, a single taxonomy with heirarichal terms won't work.
To achieve this, you can create a new post type for each level (i.e. Regions, Destinations and Locations) and then join them through one-to-many post relationships, so that:
1. One Region can have many Destinations
2. One Destination can have many Locations
3. One Location can have many Listings.
I hope this helps and please let me know if you need any further assistance around this.
