Custom Post Types & Taxonomies

I have been tackling this for awhile and don’t seem to be achieving the results I want.

Simple objective, I have custom post types (apart from just post_type ‘post’) and custom taxonomies (terms apart from just tags; ‘post_tag’); I need xili-tidy-tags to allow the grouping of these other taxonomy terms while also taking custom post types into consideration.

All that is mentioned about this in support is:

What about custom taxonomies and tidy grouping ?

Since release 1.6.0, xili-tidy-tags is compatible with custom taxonomies. Reserved for skilled webmasters with WP, data model and php knowledges. Multiple instantiation of this powerful plugin is possible.
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A little more help with this please?

I believe both xili-tidy-tags.php & xili-includes/xtt-class-admin.php need to be coded?

What particular functions need to be repeated/ or modified according to custom post types & taxonomies?

http://wordpress.org/plugins/xili-tidy-tags/