I was able to make the plugin apply to a specific post type by editing the code. The plugin looks for an id to check if anything is checked. I just changed the id and it made the user select a Taxonomy term from only that custom post type.
What I did was find the div containing my custom post type taxonomy terms when viewing the post in the dashboard. In the source code it looked like this:
<div class=”inside”>
<div id=”taxonomy-resourcetype” class=”categorydiv”>
In the plugin code (force-post-category-selection.php) there were two lines that I changed.
This line: var cats = jQuery(‘[id^=\”taxonomy\”]’)
I changed to: var cats = jQuery(‘[id^=\”taxonomy-resourcetype\”]’)
and near the end of the code I changed:
jQuery(‘[id^=\”taxonomy\”]’).find(‘.tabs-panel’).css(‘background’, ‘#F96’);
to
jQuery(‘[id^=\”taxonomy-resourcetype\”]’).find(‘.tabs-panel’).css(‘background’, ‘#F96’);
Hope this helps!