Product Page Optimization - Upasell / Cross sell - V 3.0.6

CS-Cart Gurus,

Product page optimization is very important for ecommerce business to enage customer. Right Now I am using cs-cart ultimate 3.0.6 Ultimate Edition.I need a help from cs-cart gurus.

Is there anyway I can add UPSell (Related products) on the product page right side to “Add to Cart” button?

I could not Add any blocks at the products pages. Is it a cs-cart default behavior ?

Thank you very much!