Hi,
I think u misunderstood this feature, collapse/expand feature is for subcategories under each main category. Here is how it is work.
Lets say u have 2 categories
[]Hotel
[]Restaurant
and if Hotel has subcategories e.g. 1 star, 2 star, 3 star then if u uncheck the collapse check box then map cat box will appear like this
[]Hotel
[]1 star
[]2 star
[] 3 star
[]Restaurant
else it will appear like
[]Hotel
[]Restaurant
Hope it is clear?
Please advise ?
Thanks