Dear Michael Telgmann,
I have went through the links you provided, not found any appropiate solution to my problem, can you please help me with some more in depth hint, I need an example how to extend the sCategories::sGetCategories().
What I am trying to do is, I will get the ID of each category through my plugin and count products in s_srticles_categories and display in the TPL which you mentioned in previous reply.
Please help me for my solution.
Thank you.