Please add the following line:

$args = apply_filters( 'wp_terms_checklist_args', $args, $post_id );

to your code of mfields_terms_radiolist() forked from wp_terms_checklist(), after line 231 in radio-button-categories.php, so themes and other plugins may alter function arguments (for switching to hierarchial output mode, for example).

https://www.ads-software.com/plugins/category-radio-buttons/

Michael,

how do I get this to work with custom post types?

thanks
Paul

This plugin works when you’re in the post editor, but when you click on Quick Edit under the list of posts menu you aren’t given radio buttons.

Hey,

I’m wondering if someone’s still working on this plugin? I’d love to be able to use this in version 3.0.3. Thanks!

https://www.ads-software.com/extend/plugins/category-radio-buttons/