Autocomplete
Taxonomy → Autocomplete chooses which tag categories are suggested as a visitor types in your site’s search box.
- Switch categories on or off. Toggle all sets every category.
- Click Save autocomplete.
The list follows your tracks tag cloud order; categories hidden from that cloud are dimmed.
Also controls the tag cloud and tag search
Tags in categories switched off here are not indexed for search at all, so they disappear from the tag cloud and cannot be searched on your site. Use Tag order to hide a category from the cloud while keeping it searchable.