This addon is a plugin. You need to extract it to your /plugins folder to install it.
Utilizes the Chosen plugin by Harvest for super sweet category selections.
Turns the default category selector into a searchable selector using the Chosen jQuery plugin. Perfect for communities with a ton of categories or just people who want the category selection process to be as smooth as possible.
It supports using top level categories both as selectable categories as well as headers. However, as the search functionality does not work if non-breaking spaces are included, these are removed by a script. This means that you'll no longer be able to distinguish between different levels of categories other than headers and child categories.