Sorry too, ok =)
im have k2 filter, on k2 category group 1 parent and 5 child groups.
On site module k2 filter show on drop-down list 7 lines:
1. filter description (category, SELECT_CATEGORY_FRONT on en-GB.mod_jak2filter.ini)
2. parent category
3-7 child categories
Im wanna hide parent category or filter description.
