I started with the free WP user Frontend plugin and loved it. I particularly loved the way the forms and fields looked, especially the ajaxed category field, which showed 2 sub-categories if available.
So I decided to buy the pro version.
However I can't seem to activate ajax for the category field in the pro version, like I did with the free version.
How can I activate ajax on the category field, to automatically show 2 fields when the category has a sub-category too?