Custom post type specific category box

Question

Is it possible to give a custom post type its own category box?

If I use 'taxonomies' => array("category") or register_taxonomy_for_object_type('category', post_type); I get the desired box but it shows all categories across all post types.

I want the displayed values in the meta box to show just that post types categories.

If I use:

register_taxonomy( 'categories',
    array (
        0 => 'event',
    ),
    array( 
        'hierarchical' => false, 
        'label' => 'Event Categories',
        'show_ui' => true,
        'query_var' => true,
        'rewrite' => array('slug' => ''),
        'singular_label' => 'Event Category'
    ) 
); 

then I have to manually type tags opposed to being able to click a checkbox to assign categories.

This breaks the UX for less computer savvy people.

Is there a better way?

Answer 1

Create a custom taxonomy (as you have) except change the hierarchical argument to true for the meta box to behave like the default categories taxonomy:

'hierarchical' => true