[Plugin: List Sub Categories (LSC)] sub categories for custom posts

Hi.

This is exactly the plugin I was looking for. However, is there a way to make this plugin show custom categories instead of the original post categories. To explain a little better, I run a classifieds ads page and I was ordering if there is a way to make is how the subcategories for the ad categories instead of post categories. I appreciate any help/

https://www.ads-software.com/extend/plugins/list-sub-categories-lsc/